THAILAND’S prime minister called Monday’s bombing of a Bangkok shrine the country’s worst-ever terrorist atrocity, as police identified a suspect from CCTV footage.

Investigators believe a man seen in a security video wearing a yellow T-shirt and carrying a backpack set off the bomb that killed 20 people, including a Briton, and injured more than 100 at the Erawan shrine.

“The yellow shirt guy is not just the suspect. He is the bomber,” police spokesman Lieutenant General Prawut Thavornsiri said.

Gen Prawut earlier released several photos of the man, with and without the backpack, on social media.

Prime Minister Prayuth Chan-ocha called Monday’s explosion “the worst incident that has ever happened in Thailand” and promised to track down those responsible.

“There have been minor bombs or just noise, but this time they aimed for innocent lives,” he said. “They want to destroy our economy, our tourism.”