Four human skulls were discovered inside a package at a Mexican airport that was due to be sent by courier to the United States, local authorities say.
The skulls were found wrapped in aluminium foil inside a cardboard box at Queretaro intercontinental airport in central Mexico, the national guard said on Friday.
The package had been sent from the western coastal state of Michoacan – one of the most violent parts of the country – and was destined for an address in Manning, South Carolina, it said in a statement.