10:25 a.m. (0925 GMT, 5:25 a.m.)

Germanwings says it is setting up a family assistance center in Marseille for relatives of the 150 people killed when one of its planes crashed in the French Alps.

Investigators believe Germanwings co-pilot Andreas Lubitz intentionally crashed the plane into a mountainside during Tuesday's flight from Barcelona to Duesseldorf.

Germanwings spokesman Thomas Winkelmann said in a statement that "in these dark hours our full attention belongs to the emotional support of the relatives and friends of the victims of Flight 9525."

The airline, a subsidiary of German carrier Lufthansa, says some grieving relatives took part in a religious service Thursday afternoon near the crash site.

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9:50 a.m. (0850 GMT, 4:50 a.m.)

France's prime minister has called on German airline Lufthansa to provide all information about Germanwings co-pilot Andreas Lubitz, who investigators believe intentionally slammed a plane into a French mountainside, killing all 150 people aboard.

Prime Minister Manuel Valls called on Lufthansa to give the maximum of information "so that we can understand why this pilot got to the point of this horrific" action.

In an interview with French network iTele, Valls said Friday that nothing would be ruled out until the end of a full investigation.

The Germanwings flight from Barcelona to Duesseldorf crashed Tuesday in the southern French Alps. Germanwings is a division of Lufthansa.

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9:15 a.m. (0815 GMT, 4:15 a.m.)

German police have searched the home of co-pilot Andreas Lubitz in Duesseldorf and seized material that will now be examined as part of the investigation into the crash that killed 150 people in the French Alps.

French investigators believe Lubitz locked himself inside the cockpit and then intentionally smashed the Germanwings plane into a mountainside.

A spokeswoman for Duesseldorf police denied reports Friday that the officers had made any significant discovery yet.

"No crucial piece of evidence has been found yet," Susanna Heusgen told The Associated Press.

Duesseldorf prosecutors say they plan to release an update on their investigation around noon (1100 GMT, 7 a.m. EDT).

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7 a.m. (0600 GMT, 2 a.m. EDT)

The co-pilot who authorities believe intentionally crashed an airplane into the French Alps, killing all 150 people on board, likely first honed his flying skills for months in Arizona.

Lufthansa Group, which owns Germanwings airline, said Thursday that 27-year-old Andreas Lubitz trained in Bremen, Germany, and Phoenix starting in 2008.

A Facebook page bearing his name lists Phoenix Goodyear Airport among his interests. The airport houses Airline Training Center Arizona, a Lufthansa-owned training facility.

Aviation experts say students there log flight hours and attend classes on navigation in an 18-month period. On Thursday, German and Lufthansa flags outside the facility were flying at half-staff.

Sunshine and vast air space have historically made Arizona a popular location for pilot training.

French prosecutors say Lubitz locked the pilot out of the cockpit of Germanwings Flight 9525 on Tuesday before the jet slammed into the mountainside.