A 7.4 magnitude earthquake struck Myanmar on Friday afternoon, with tremors felt in Bangkok.
The Earthquake Observation Division reported that the quake, with a depth of 10 kilometres, occurred at 1.20pm in Mandalay, Myanmar.
The Meteorological Department said the tremors were felt in many parts of Thailand, including Bangkok.
People in the capital evacuated buildings, as businesses announced temporary closures due to the quake.
Authorities are assessing the damage and monitoring for aftershocks.
A 30-storey building under construction in the Chatuchak area collapsed due to the quake, trapping 43 workers, according to police and medics.
Satellite image of the Myanmar earthquake on Friday. (United States Geological Survey)
Earthquakes are relatively common in Myanmar, where six strong quakes of 7.0 magnitude or more struck between 1930 and 1956 near the Sagaing Fault, which runs north to south through the centre of the country, according to the USGS.
