German budget airline Germanwings confirmed on Tuesday that its flight 4U9525 had an accident over French Alps with 150 people on board.

It is an Airbus A320 plane and was flying from Barcelona in Spain to Duesseldorf in Germany. There were 144 passengers and 6 crew members on board, said the airline in a joint statement with its parent company Lufthansa.

"We must confirm to our deepest regret that Germanwings Flight 4U9525 from Barcelona to Duesseldorf has suffered an accident over the French Alps," the statement posted on their twitter accounts read.

Germanwings and Lufthansa have set up a free hotline with number 0800-11335577 for families of passengers involved for care and assistance.

"Everyone at Germanwings and Lufthansa is deeply shocked and saddened by these events. Our thoughts and prayers are with the families and friends of the passengers and crew members," the companies said.