At one point,a security guard can be seen putting his knee on the back of his head,forcing his face into the floor.
The chilling discovery was made during excavations linked to a major railway project in Tula, Hidalgo.
The alert, which lasted for about an hour, also led to the closure of the airspace over Vilnius Airport.
Christopher Columbus is believed to have been born in Genoa (Picture: Getty Images) New DNA analysis of remains belonging to direct descendants of Christopher Columbus might have uncovered informatio
Salim El Koudri, 31, rammed into crowds in the centre of the city in Emilia Romagna, injuring eight people, including four critically.
Mohammed Mahdi,a sergeant major in the Maldivian military,was said to have fallen ill on the third day of the recovery mission (Pictures: AP)
