1 CCTV suspect freed over Bangkok bomb

Thai police on Thursday said they had questioned and freed one man who handed himself in after being seen on CCTV at the Bangkok shrine moments before a deadly bomb blast, but the prime suspect remains at large.

A Thai man wanted for questioning after he was seen on security camera footage "met police and was released", national police spokesman Prawut Thavornsiri told reporters, adding a second man from China in the same shot had already left the country -- but neither were "likely involved".

The main suspect, believed to be a foreigner in a yellow shirt seen depositing a backpack at the scene was still at large, he added.