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Manila - Suspected Muslim militants on Saturday bombed an army convoy on the way to secure a medical mission in the southern Philippines, wounding two soldiers, a military spokesman said.
The roadside bomb struck a military truck and an armoured personnel carrier as the convoy passed through Patikul town on Jolo Island, some 1,000 kilometres south of Manila, said Colonel Rodrigo Gregorio.
The attack occurred as the United States warned its citizens against travelling to the southern region of Mindanao, especially the Sulu archipelago, which includes Jolo.
The State Department's travel advisory cited "the high threat of kidnapping of international travelers and violence linked to insurgency and terrorism" in Sulu.
Al-Qaeda-linked Abu Sayyaf rebels are still holding two birdwatchers from Switzerland and the Netherlands, and a Jordanian television reporter seized last year.
Last month, two independent filmmakers, who are sisters, were kidnapped by suspected Abu Sayyaf rebels in the village of Liang in Patikul while working on a documentary on Sulu coffee farmers.