Two bombs have exploded in Thailand's mainly Muslim south after Britain, Australia and the United States issued travel warnings of possible attacks in the region.
No casualties were reported.
The first bomb was planted in a garbage bin near a police officer's house in Narathiwat province, damaging a mortorbike, police said.
The bomb was kept in the bin about 10 metres from the residence of Waeng district police chief Sunthorn Chalermkiat, before it exploded.
The second explosion happened about an hour later in Takbai district at the iron gate of a housing complex where about 200 families of police and officials live.
Police Major General Thanee Thawitchsri, the top police commander in the south, told Reuters: "They were the act of a group of people who want to create turmoil and defy the government."
The blasts were the latest in a series of violent attacks, which Thai security officials blame Muslim separatists, renegade officials and local gangs for the violence in which have killed more than 60 people since January.
Britain, Australia and the United States issued travel warnings on Friday for the region, where Thai police said intelligence reports pointed to possible attacks by militants during Songkran, the Thai New Year holiday from April 13 to 15.
Thailand's south has been on full alert for bombs since March 31 after armed raiders stole 1.4 tonnes of ammonium nitrate from a rock quarry company in Yala.
The stolen chemical, the same material used for making the Bali bomb in 2002, was enough to build a bomb capable of blowing up a town, security officials said.
More than 1,600 extra security personnel had been sent to the south from other areas of the country for Songkran, they said.