Mumbai: Megastar Amitabh Bachchan's Twitter account was allegedly hacked on Monday night by Ayyildiz Tim, which claimed to be a Turkish hacker group.

The group replaced Bachchan's profile picture with a photo of Pakistan Prime Minister Imran Khan and also changed the bio, adding "Love Pakistan" and an emoji of the Turkish flag.

According to PTI, a spokesperson for Mumbai Police said that they have informed the cyber unit and the matter is being investigated.

The cover photo of Bachchan's account, which was subsequently deleted, showed the promo picture of the group with an eagle in flight.

"This is an important call to the whole world! We do condemn the irrespective behaviors of Iceland republic towards Turkish footballers. We speak softly but carry a big stick and inform you about the big Cyber attack here. As Ayyildiz Tim Turkish Cyber Army," read the first tweet after the cyberattack, which occurred around 11:40 pm on Monday.

Minutes later another tweet followed on Muslims in India.

The group also tweeted the link of its 'official' Instagram page, though unverified, writing "We are waiting for your support."

"We have informed our cyber unit and Maharashtra Cyber about (the hacked) Twitter account of @SrBachchan. They are investigating the matter. Further updates awaited," the Mumbai Police spokesperson told PTI.

The same group had previously hacked Twitter accounts of actors Shahid Kapoor and Anupam Kher among others.

The Twitter account seemed to have been restored within half-an-hour.