A silver vehicle outside the embassy was the subject of a forensic officer's investigation on Saturday afternoon.
Footage showed armed police surround the vehicle before smashing the driver's window and using a Taser on the screaming suspect.
Police said a "standard procedure" investigation is now ongoing into the discharge of a police firearm during the incident.
Adding: "I would like to pay tribute to the officers involved in this incident who responded this morning and put themselves in harm's way as they do every day to keep the people of London safe". The Director of Professional Standards has been notified of the incident.
Trump calls for expanding airwaves to 5G service
Starting on December 10th, carriers will be allowed to bid on "3,400MHz of Upper 37 GHz, 39GHz, and 47 GHz Bands". The next 5G spectrum auction, it said, will be "the largest airwaves auction ever held in the United States".
Global crude output falls in March '19
There is worldwide shortage in the oil market due to the interventions in production by the oil cartel OPEC. That is down 9.4 percent from 10.23 million bpd in February as state-owned refiners began maintenance.
Trump sanctuary city idea could help migrants stay in U.S.
HHS has traditionally been responsible for providing temporary shelter to unaccompanied migrant children crossing the border. He said that he was under audit and didn't intend to turn anything over until that process had been completed.
2 children dead as severe storms pummel South
The weather service said preliminary information showed an EF-3 tornado touched down with winds of 140 miles per hour (225.3 kph). Robertson County Texas Sheriff Gerald Yezak said a suspected tornado hit Franklin, a small city about 125 miles south of Dallas.