Passengers include 11 children and seven pregnant women, as well as 123 unaccompanied minors.
The government of Malta expressed concern that Italy is going against global rules in the way it is tackling the issue regarding stranded migrants.
"As such Malta will not take the said vessel in its ports", their statement continued.
Muscat said he told Conte "that Malta is acting in full conformity with its worldwide obligations". That stance "confirms the latest unwillingness of Malta and, thus, of Europe, to intervene and take care of the emergency".
The decision ultimately rests with Salvini's government because a ship typically can not dock without the presence of the Italian coastguard, which is controlled by Rome.
Matteo Salvini, the leader of the far-right League party, said Malta should take in the ship, the Aquarius, but his request was rejected.
"From today, Italy will also start to say no to human trafficking, no to the business of illegal immigration".
Matteo Salvini sent a letter to the Maltese authorities saying he would "be forced to close Italy's ports" if the 629 migrants saved by the French charity SOS Mediterranee weren't allowed to land at Malta's capital Valletta.
Salvini and Italian Transportation Minister Danilo Toninelli, who is part of the 5-Star Movement faction in the new government, said in a joint statement Sunday that it was Malta's responsibility to "open its ports for the hundreds of the rescued on the NGO ship Aquarius".
"The island can't continue to turn the other way", the ministers said. "The Mediterranean is the sea of all the countries that face it, and it (Malta) can't imagine that Italy will continue to face this giant phenomenon in solitude". "RCC Malta in this case is neither the competent, nor the coordinating authority". The Rome-based rescue coordination centre gave the instructions.
"Our objective is the disembarkation in a port of safety of the 629 people now on board the Aquarius - some we rescued yesterday night in hard conditions", she was quoted by Reuters as saying.
The Maltese prime minister also expressed concern over the Italian authorities' directions given to the Aquarius vessel, adding that such policies contradicted worldwide norms, and might lead to risky developments.
The MV Aquarius, a search and rescue ship run in partnership between SOS Mediterranee and Medecins Sans Frontieres, has been told by Italian authorities to stand by in its current position, 35 nautical miles from Italy and 27 nautical miles from Malta.
He has criticised humanitarian organisations for providing what he has called a "taxi service" for migrants trying to cross the Mediterranean from Libya. Some 400 of the migrants were rescued by the Italian Navy, the Italian coastguard and merchant vessels before being transferred to the Aquarius.
Italy's new interior minister has refused to let 600 migrants disembark in Italy, leaving rescue ship in limbo in Mediterranean.
One boat found Sunday was carrying four bodies along with 49 migrants. The lawlessness in Libya has made it a popular place for migrants to try to depart for Europe.
The United Nations estimates that at least 500 people have died in 2018 trying to cross the central Mediterranean, following some 2853 fatalities previous year.
The game will feature updated visuals, refined gameplay, and support for 16:9 4K in this incredibly hard-to-forget journey. The trailer for the game, revealed at Devolver's frankly mad E3 conference, doesn't make a lot of sense, if I'm honest.
A bystander videotaped a freaky scene of a woman letting kids out of pet kennels in her auto , which led to the woman's arrest. A bystander happened to capture the moment on video when the woman was letting a girl out of one of the pet kennels.
Abby immediately realised her mistake and apologised during the show itself. "I don't think I have to prepare very much". Fox News host Abby Huntsman has apologized - again - for calling the North Korea summit a meeting of " two dictators ".
French President Emmanuel Macron said "international co-operation can not be dictated by fits of anger and throwaway remarks". German Foreign Minister Heiko Maas said: "In a matter of seconds, you can destroy trust with 280 Twitter characters".
Erdogan's speech comes in the run-up to presidential and legislative elections on June 24th in which he faces stiff opposition. Mr Kickl said his government suspects them of contravening a ban on foreign funding of religious office holders.
In "Abyss", you must fight your way through enemies in both "hand-crafted" and procedurally-generated maps to collect treasure. During Bethesda's E3 press conference, director Matt Firor took the stage to reveal two upcoming expansions.
Xbox chief Phil Spencer announced the acquisitions during the E3 gaming convention in Los Angeles Sunday. The game looks handsome already but will see a higher visual fidelity through the power of Xbox One X.
After leading all three practice sessions, Red Bull driver Max Verstappen will start third, alongside Hamilton. And a miscalculation that saw a race official waive the checkered flag when there was still one lap to go.
While taking a break from his entertainment duties, Surchard also shared a photograph alongside the KarJenner sisters. Catch highlights of the West-Kardashian-Jenner family's visit to Family Feud below.
'Physically easier to watch Nadal on TV', says beaten Thiem
The world No 1 lived up to his billing as the heavy favourite with a 6-3 6-3 6-4 victory over surprise finalist Anderson. Unlike past year - when those first few games realistically settled things - Thiem bounced back, breaking straight away.
Alisson, on his future
Alisson kept a clean sheet in Sunday's World Cup warm up victory over Austria which the Brazilians won 3-0. Brazil and Roma goalkeeper Alisson hopes his club future is decided before the start of the World Cup.
Putin says willing to meet Trump whenever U.S. is ready
Rouhani also hailed Russia-Iran cooperation in Syria, saying that "our role in the region is quite significant". Putin said he shares Trump's expression of concern about a renewed arms race expressed in a March phone call .
Dele Alli promises best behaviour for England at World Cup
I don't think people will be trying to do bad things, and if they do, and they get punished for it, then it's your own fault. You have to stay concentrated and you can't do stupid things - and if you do, you have to learn from your mistakes.
DEVIL MAY CRY 5 is Officially Coming in 2019
At the moment it appears that it's only single player, and of course, it'll release both physically and digitally. In the game, several years have passed and the threat of demonic power is "long since forgotten".
Scotland stun top-ranked England in ODI upset
An England attack missing the injured Ben Stokes had a match to forget, with Plunkett's 10 overs costing 85 runs. Victory completed a notable double over England for the Sole family.
Bittersweet Paris Sevens win for Black Ferns over Australia
The all-important conversion, which had the power to determine the series title, was well wide and the game went into extra-time. From there, they swung the ball wide to Geduld, who stepped and turned his way past several defenders to score.