Mumbai, April 15 -- The Mumbai police on Monday stepped up security around Salman Khan's residence in the city after the traffic police on Sunday received a death threat against the Bollywood actor, officials familiar with the matter said.

In the message, received on the traffic police's WhatsApp helpline on Sunday, the sender said: "I will barge into his house" and "blow up Salman Khan's car with a bomb", a police official said.

"The sender threatened to kill the actor by reaching his Bandra residence and also threatened to detonate a bomb in his SUV," the officer from Worli police station said.

An official posted at the traffic police control room then alerted seniors about the message, based on which the Worli police here registered a...