Army divers and disaster response teams on Saturday expanded their search at Bargi Dam in Madhya Pradesh to locate a man and three children still missing after the cruise boat tragedy that claimed nine lives two days ago, officials said.

With 28 of the 41 identified passengers onboard the ill-fated cruise boat rescued safely, police are preparing to register an FIR in connection with the accident that occurred at the reservoir in Jabalpur district on Thursday evening, they said.