AKIPRESS.COM - Video footage has emerged of a key suspect police want to question in connection with the deadly bomb blast in the Thai capital, Bangkok.

The footage, from a CCTV camera, shows a man in a yellow shirt leaving a backpack in the Erawan Hindu shrine, reports BBC.

At least 20 people died in Monday's blast, about half of them foreigners, and more than 120 were injured.

In a separate attack on Tuesday, an explosive device was thrown at a pier in Bangkok, but no-one was hurt.

Nationals from China, Hong Kong, the UK, Indonesia, Malaysia and Singapore are among the foreigners killed in the attack.