The residence of opposition leader Abhisit Vejjajiva in Sukhumvit Soi 31 shows the holes in the roof caused by a small bomb on Tuesday night. (Photos by Thiti Wannamontha)
Mr Abhisit said the explosion late Tuesday night was probably an attempt to intimidate him and the anti-government demonstrators, according to a report on Matichon Online.
It showed that ensions were increasing, but the caretaker government still showed no inclination to end the political impasse, he added.
The bombing was the latest of several so far non-lethal attacks on present and former Democrat Party members.
Gunshots were fired outside the house of party chief adviser Chuan Leekpai in Muang district in Trang province on Jan 1. Gunshots hit Sathit Wongnongtoey's residence in Huai Yot district of Trang on Dec 26. Mr Sathit earlier resigned his position as a Democrat MP to join the leadership of the People's Democratic Reform Committee.
The small bomb was thrown at Mr Abhisit's house on Sukhumvit Soi 31 about 11.30pm on Tuesday, Pol Lt Capt Supakorn Thippila, a Thong Lor police station investigator, said.
Pol Maj Gen Suebsak Phansura, chief of the Metropolitan Police Bureau's Division 5, said investigators had not yet reported their findings on the type of explosive, but he believed the intention was to stir up trouble.
The blast damaged the roof, leaving a 50cm hole, and shattered windows of the house belonging to Mr Abhisit's father, Athasit, who shares the compound with him.
Mr Abhisit and his family were not at home at the time.
Pornthep Nimkerd, a security guard of Avora 31 Residence opposite the house, said he heard a loud noise and thought it was an electricity supply transformer explosion. THen he noticed small pieces of roofing tiles on the street, but he did not see any vehicle in the area when the blast occurred.
Pol Capt Supakorn said investigators were examining footage from nearby security cameras.
The Democrats have boycotted the scheduled Feb 2 election.