Two two-storey buildings were damaged when one subsided and collapsed onto the other, in rain-soaked Phuket late on Thursday night.
The twin buildings, each with nine rental units, were built on a hill slope. About 11.50pm one of them slumped suddenly to one side, coming to rest against the other building. Both walls were damaged.
There were about 10 people in the buildings at the time. They ran safely outside, but some were slightly injured by falling ceiling panels.
Phuket governor Narong Woonciew led a team to inspect the scene, which was quickly cordoned off.
Officials said it appeared the building foundations had been softened and eroded by the persistent rain over the last several days.
A tenant said he was inside and first heard loud noises sometime after 11pm. He and three other residents ran outside as the ceiling collapsed around them. He said their belongings were still inside the building.
Another resident said most tenants had left with their belongings earlier on Thursday, after the buildings first began making noises and showing signs of subsiding in the morning. It had been raining there for days.
