London Mayor Sadiq Khan on Friday urged citizens to “over-report to the police” rather than keep quiet on suspicious activity following a stabbing near London Bridge that city leaders have labeled a terrorist incident.

“I’d rather people over-report to the police and the experts than under report. It’s really important,” Kahn said in a news conference after the incident, which left multiple people injured and a suspect dead.

“I know speaking to colleagues around the world, Mayors of other great cities, that we’re all targets for terrorists,” he told reporters. “The fact is, since the four terrorist incidents in 2017, because of the excellence work of the police and the security services and because of the intelligence provided by members of the public, we thwarted more than 20 attempts at terrorism on innocent citizens.”

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He also asked members of the press “to respect the privacy of all those who have been injured today and their families as well.”

The Guardian reported that five people have been injured in what London police have declared as a terrorist attack. Police also said a man in connection with the stabbing had been shot by officers and died at the scene.

The suspect had a “hoax explosive device” strapped to his body, Neil Basu, assistant commissioner of the Metropolitan Police Service, said during a news conference.

President Trump was briefed on the attack while in Florida on Friday and "is monitoring the situation closely," the White House said in a statement.