British police reported that they are addressing the incident on the London bridge as a possible terrorist attack, although it emphasizes that the circumstances of the event "remain unclear."
Security forces confirmed that officers shot a man after being alerted to a stabbing, an event that left "several injured."
The ambulance service of the British capital has declared that it is a "serious incident" and has sent troops to the place, including a medical helicopter.
British Prime Minister, conservative Boris Johnson, said he is kept informed about the incident and thanked the "immediate response" by the police and emergency services.
Johnson, who is immersed in the election campaign ahead of the December 12 elections, is expected to return to his office at 10 Downing Street in London.
Interior Minister Priti Patel, for her part, was "very worried" about the incident and said that her thoughts "are with all those affected."
On June 3, 2017, a terrorist attack with a white weapon on the same bridge and in the nearby Borough market left eight fatalities and 48 wounded.
On that occasion, the main British parties temporarily suspended during one day the electoral campaign of the anticipated general elections held on June 8 of that year.
The London Bridge subway station was closed today as a result of the event and the transport manager of the British capital, TFL, urged citizens to use alternative routes to travel.