A van has reportedly mounted the pavement and an apparent knife attack was carried out afterwards. London Bridge has been closed and Armed Police are on the scene as we speak.
Witnesses said a white van veered off the road before hitting pedestrians.
Police have confirmed they are dealing with an incident and armed police were seen at the scene.
London Transport Police say London Bridge station is also closed.
Will Heaven was at the scene shortly afterwards and wrote on Twitter that he had seen casualties – one on the pavement and one on the edge of the road.
Around 20 people are said to have been hit by a white van.
Witnesses claim that men ‘randomly started stabbing people’ along Borough High Street with 12-inch long knives.
Police are also responding to another incident at Borough Market, Scotland Yard said.
Witnesses have said Gunfire has been heard at incident on London Bridge
Witness says he saw an individual “lying on the floor” who “looked in a bad way” following incident at London Bridge
“A white van driver came speeding, at about 50mph, veered off the road into pedestrians,” an eyewitness told the BBC News channel.
It is believed that 3 people got out in borough market and stabbed members of public then were shot dark scary time.
Police say there is a second incident taking place at London’s Borough Market
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Reports incident is ongoing – Police tell people in local bars and restaurants to get on floor
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Footage shows police with attacker suspect
More than one dead at London Bridge, police say, amid reports of stabbings in Borough and incident in Vauxhall
Multiple people dead after incident at London Bridge