THOMAS HUNT/ EXPRESS
Armed police take position at London Bridge
Shots were fired at the scene and there were victims suffering from knife wounds.
Police have sealed off London Bridge and are also responding to a second incident at Borough Market.
Three suspects, who are possibly armed, are wanted by police. At least one person has been taken into custody.
THOMAS HUNT / EXPRESS
At least two people have died
Theresa May has said that the "terrible incident" in London is being treated as a "potential act of terrorism".
Police have confirmed that incidents at London Bridge and Borough Market are “terrorist incidents".
Officers have also advised people to keep away from the London Bridge area. The Shard and the News Building are on lockdown.
Theresa May is set to hold a COBRA meeting early this morning
Mrs May is set to hold a COBRA meeting early this morning.
Another incident in Vauxhall where there were reports of a stabbing was initially thought to be linked but police have confirmed that is not connected to the "terrorist incidents" at London Bridge and Borough Market.
Dozens of people were on the bridge at the time of the attack.
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Police are questioning witnesses.
Jeremy Corbyn has tweeted: “Brutal and shocking incidents reported in London. My thoughts are with the victims and their families. Thank you to the emergency services.”
Donald Trump tweeted: “Devastated to hear of murders at a part of our capital defined by life & vibrancy. Cannot thank emergency services enough for rapid response.”