German leaders raised the possibility that a fiery cargo plane crash in Lithuania on Monday was the result of sabotage or hybrid warfare.

The aircraft crashed at 5:30 a.m. local time, Ramūnas Matonis — who is the head of communications for the Lithuanian police — tells PEOPLE in a statement. Matonis also said that a Spanish citizen had died in the crash, while three people (from Spain, Germany and Lithuania) were injured.

A DHL cargo plane crashed Monday near the Lithuanian capital's airport, killing one crew member, with Germany raising the possibility of outside involvement in the disaster. Police said the deceased person was Spanish,