The resignation of Kim Darroch came a day after Trump lashed out at him on Twitter describing him as "wacky" and a "pompous fool" after leaked documents revealed the envoy's dim view of Trump's administration.
Mr Basu issued an additional statement on Saturday afternoon asserting he had received ethical recommendation that led to the Met initiating an investigation into the paperwork as a capability breach of the Legitimate Secrets Act (OSA).
The government launched an internal Whitehall inquiry into the publication following the reports.
Darroch resigned on Wednesday, saying it was now "impossible" to do his job.
"Given the widely reported consequences of that leak I am satisfied that there has been damage caused to United Kingdom global relations, and there would be clear public interest in bringing the person or people responsible to justice", Met Assistant Commissioner Neil Basu said in a statement.
Mr Johnson has been accused of throwing the UK's ambassador to Washington "under the bus" when leaked memos triggered an extraordinary public row with Mr Trump.
His rival Boris Johnson said it was correct the person responsible for the leak was "hunted down and prosecuted" but it was wrong for police to target the media.
Following the backlash, Mr Basu mentioned police had "no design of searching out for to forestall editors from publishing reviews in the general public interest in a liberal democracy".
"Some people just told me - too bad - they said he actually said some very good things about me", he said.
'The publication of leaked communications, knowing the damage they have caused or are likely to cause may also be a criminal matter.
The Mail also published further memos from Darroch, defying a police warning that media which did so could be committing a criminal act.
According to the Sunday Times, which cited unnamed government sources, a suspect had been identified and suggestions that it could be the result of a computer hack by a foreign state had been ruled out.
He added: "What could be more in the public interest than a better understanding of how this position was reached, which may have serious consequences for world peace?"
Interestingly, this new Card-type feature will also let you see the preview of particular news even before you click its link. The new design makes publisher names more prominent and introduces a much better interface that's organized better.
Casts from Come From Away , Waitress and Hadestown performed for audiences waiting to be admitted, according to Broadway World. It said the outage extended from Fifth Avenue west to the Hudson River, and from the west 40s north to 72nd Street.
While these devices can play music from other services like Spotify , they default to Amazon services in many cases. The Apple Music service is available for the iOS, HomePod, Apple Watch, Amazon Echo, macOS, Apple TV and more.
Republican lawmakers blamed Democrats for blocking sufficient aid to improve conditions and posing as helping while doing little. The House bill also includes an amendment that would bar Trump from attacking Iran without first obtaining Congress' approval.
One of the issues for Indian oil companies is their requirement to sell below market to subsidize prices in their home country. The US pulled out of the agreement earlier this year as President Trump claimed he was looking for a better deal.
Wilson checked in at No. 2 in the fan vote on July 2 and had been widely tipped to be a starter by national media outlets . Wilson said that she might have to negotiate to get into the DJ booth with her teammate.
Human Rights Council on suppression of rights and freedom in Hong Kong and called on it to eject China as a member. The demonstrators chanted demands in Mandarin, China's official language, for the Chinese traders to go home.
Screens in Time Square are black during a widespread power outage, Saturday, July 13, 2019, in the Manhattan borough of NY . The Con Edison utility said it was working to restore power to 42,000 customers and would provide updates as it got them.
She pursued a masters at Cal Arts, then began acting with roles in series including "Vanishing Son" and "Murder She Wrote". She also appeared on popular TV shows like Grey's Anatomy , Life is Wild , CSI: Miami , NCIS , Lost and The Twenty .
Taiwanese media broadcast footage of the clashes outside the Grand Hyatt, where Tsai is staying during her two-day USA trip. The official China Daily said Ms Tsai was "playing a game of brinksmanship" by building up Taiwan's military defence.
United stunned by £50m Longstaff price
Newcastle United midfielder Sean Longstaff has enjoyed a meteoric rise in English football after just one season. And as well as tuning into Sky Sports News , don't miss a thing with our dedicated Transfer Centre blog.
Amazon's Alexa will offer medical advice
The new partnership has been spearheaded by NHSX, an NHS body set up to bring digital technology to patients. The move is meant to relieve pressure on NHS staff amid an overhaul of the service to become more digital.
Heidi Klum and Tom Kaulitz Are Married
Back in July, Klum gushed about her now-husband to People: "He is the kindest, sweetest, most caring, loving person". They divorced in September of 2018, only months before he proposed to Heidi in December, according to The Blast .
Magnitude 4.6 natural disaster rumbles western WA
Exactly one week after 3 significant earthquakes hit the BC coast , a 4.6 magnitude quake struck near Seattle , WA early Friday. There isn't a connection between this natural disaster and the ones that rocked California earlier this month, Steele said.
Angels honor Tyler Skaggs with no-hitter, amazing game
After an uncommonly slow trot around the bases, Trout pointedly looked up in the direction of Skaggs' family in the stands. They had no doubt of a strong first pitch by his mom, a longtime softball coach at Santa Monica High School.
Here's why Trump is insulting Paul Ryan
It has been widely reported that during Ryan's speakership, he had a frosty relationship with Trump. Ryan had no comment Friday on the president's tweets about him, his spokesman Brendan Buck said.
Tottenham hijack Arsenal's Saliba deal
Arsenal are also pursuing Celtic left-back Kieran Tierney, 22, and hope to recruit a central midfielder and winger. Saint-Etienne and Arsenal had agreed a deal, just not payment structure/bonus clauses.
No Bones Found in Vatican Tombs Searched for Missing Girl
And past year , a bag of bones was found during ground work at the Vatican embassy in Rome , but DNA tests turned out negative. A statement said the graves would be opened on 11 July in the presence of representatives of the missing girl's family.