The traffic helpline of Mumbai Police has received a WhatsApp message from an international number advising the force to take care to avoid a 'Somalia-type attack' in India, an official said on Friday.
Last week the traffic helpline number had received several messages threatening of another '26/11-like' attack in the city.
The latest message did not issue any threat but police are investigating its source, the official said.
Terror group Al-Shabaab recently attacked the Hayat Hotel in Mogadishu, Somalia's capital.
The message, though, did not make it clear which incident in the African country it was referring to.