Democrat spokesman Chavanon Intharakomalsut said the accident occurred at Abhisit’s house on Soi Sukhumvit 31.
He was rushed to the Ramathibodi Hospital where an x-ray revealed a broken collarbone, Chavanon said.
He will go into surgery on Wednesday evening and could stay in the hospital for a couple of days, the spokesman said.
Chavanon said Abhisit’s injury would not affect the Democrat’s assembly on Friday and Saturday because he could assign a deputy leader to chair the meeting on his behalf.