Mexico's Catholic council of bishops said on Thursday that a priest kidnapped in the Gulf coast city of Tampico had been released unharmed.

The council identified the priest as Fr Oscar Lopez Navarro, from the Tampico diocese. He was kidnapped late on Tuesday.

Bishop José Luis Dibildox of Tampico had said the kidnappers indicated they would negotiate for his release, apparently in exchange for a ransom. But the bishop's council did not say whether any ransom was paid.

"We are pleased to hear of his release. We mourn the way our society is being affected by violence," the council said.