Prime Minister Narendra Modi Thursday expressed sadness over the London terror attack and said India stands with the UK at this difficult moment. 

Five people were killed and nearly 40 injured when a terrorist suspect mowed down pedestrians on a bridge and stabbed a police officer close to the British parliament complex in an incident inspired by "international terrorism". 

Source: b"Five people were killed and nearly 40 injured in 'terrorist' attack near UK parliament/ Source: Reuters"

Those dead included the assailant and the policeman he stabbed. 

The attacker was shot dead by Scotland Yard officers. 

Mark Rowley, Britain's national lead for Counter Terrorism Policing and the Acting Deputy Commissioner, said the attack began when a car was driven over the Westminster Bridge, hitting members of the public and three police officers.