A building in Bangkok that had been under construction collapsed, killing at least eight people, while dozens of workers remained stuck in the rubble.

Anxious loved ones waited outside a twisted mass of metal and concrete in the heart of Thailand’s capital on Saturday as rescuers searched for dozens of missing workers and the city confronted the aftermath of a rare and powerful earthquake that set skyscrapers swaying and rattled millions of residents.

At least 15 people are thought to still be alive and trapped under the rubble of a Bangkok skyscraper that collapsed after a massive earthquake hit Myanmar and Thailand. Rescuers say they have detected signs of life and communicated with some survivors under the 10-storey tall mountain of debris.