Bangkok: Thai authorities, on Tuesday launched a hunt for a male 'suspect' who may have left a bomb inside the hugely popular Lord Brahma temple in a crowded area in central Bangkok that killed at least 20 people and injured 123 others.

Thai Prime Minister Prayut Chan-O-Cha said there is a male suspect who appeared on CCTV near the scene of the blast. "We are looking for this guy," he said. He called an urgent war room meeting with Cabinet members and security agencies at Government House.