Bomb kills three in Philippines

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A crudely-made bomb has killed at least three people and injured at least 10 others in the southern Philippines.

The bomb went off while the bus was parked in a terminal in the town of Digos, on the island of Mindanao.

"It was an improvised bomb," said military spokesman Major Armand Rico. He said the bomb was being analysed to try to determine who was behind it.

Mindanao is home to several militant groups who have fought to establish an Islamic homeland.

Small-scale bombings are common in the region, which also hosts communist rebels and extortion gangs.

The bus hit by Thursday's blast was en route to Davao, the largest city on Mindanao.

Earlier, authorities there had warned that Muslim militants were plotting attacks, reported news agency AP.

But bus companies have also been targeted by criminal gangs seeking to extort money.