BANGKOK, Jan. 5 (Xinhuanet) -- Two police posts in Thailand's two southern provinces suffered bomb attacks Monday afternoon, in which at least two policemen were killed and three others injured.

    The two attacked police posts are located in Narathiwat province, 1300 kilometers south from Bangkok, and in Pattani province, 1200 kilometers south from the capital.

    According to sources from the Army, In Pattani, a bomb hidden in a dustbin near a police post blew up at 2:45 p.m. Monday, killed two policemen and injured the other.

    In Narathiwat, two policemen were injured in the attack.

    Meanwhile, in central Pattani town, police found a bomb hidden in a motorcycle parking in front of a shop.

    It's the latest attacks against the authorities in the country's predominantly Muslim provinces following a series of violence occurred Sunday morning.

    Unidentified attackers simultaneously touched 20 schools and killed four soldiers while stealing more than 100 guns from an army camp in Narathiwat province early Sunday.

    It is believed that the attacks were coordinated by some separatists groups, including the Pattani United Liberation Organization (PULO), the Barisan Revolusi Nasional (BBN) and the Mujahideen.

    The secessionist movement has tried for decades to carve out Thailand's southern four Muslim predominant provinces of Pattani,Yala, Narathiwat and Songkhla to establish an independent Muslim country.

    Some separatist groups laid down their weapons following a blanket amnesty in 1980s, but a few of armed men still stranded along the Thai-Malay border, they plagued the southern provinces by violence over the past two years, during which more than 20 police officers were killed, trains bombed, government offices attacked and weapons depots raided.

    According to military sources, a number of separatists were members of both PULO and Mujahideen Pattani and the two organizations had reached a tactical agreement for carrying out attacks against government officials and offices. Enditem