Mumbai Traffic Police's control room has received several text messages on the WhatsApp number of its helpline, threatening a "26/11-like" attack, an official said on Saturday.
He said that Prima facie, the number from which the messages have been sent is from outside the country.
"Text messages were received on the WhatsApp number of the Mumbai police's traffic helpline operated from the control room located at Worli in central Mumbai around 11 pm on Friday," the official said.
"In the series of messages, the sender has threatened about a 26/11-type attack," he said, adding that the city crime branch has initiated an investigation into it.
In one of the most horrific terrorist attacks in the country's history, 166 people were killed and over 300 injured as 10 heavily-armed terrorists from Pakistan wreaked havoc in Mumbai on November 26, 2008.
Also watch: 'Seized my laptop, phone and some files': Manish Sisodia after 15-hour long CBI raid
The threats comes two days after a yacht with 3 AK-47 guns and ammunition drifted to the Raigad coast causing a major security scare in the state. A potential terror threat, however, was ruled out, in the case.
With PTI inputs