Christian televangelist Pat Robertson suggested on Thursday that the co-pilot's decision to crash Germanwings Flight 9525 could be explained if he was a Muslim.

French prosecutors concluded on Thursday that co-pilot Andreas Lubitz had locked the pilot out of the cockpit, and then deliberately crashed the plane into the French Alps, killing 150 people.

"What happened to that plane that crashed into the French Alps?" Robertson asked on Thursday's edition of The 700 Club. "Well, they've begun to find out. The pilot went to the lavatory and was soon locked out of the cockpit. He pounded on the door, begging to come in. But the door was not opened."

"The co-pilot then takes the plane, pushes it into a dive and crashes it. The passengers are screaming as the plane went down. The pilot is yelling."

"What a terrible tragedy," the TV preacher continued. "Was that co-pilot a Muslim? Was he suicidal? What was it about him?"

Robertson later allowed for the possibility that Lubitz could have been "just psychotic."

"What was it?" he wondered. "Why would he want to kill all those people?"

French prosecutor Brice Robin on Thursday described Lubitz as a 28-year-old German who was "not listed as a terrorist."

Robin told reporters that he did not know Lubitz's religion or ethnicity, but said, "I don't think that's where the answer to this lies."