French police investigate fire at migrant workers' center

Migrants and fire fighters gather outside a migrant workers' center after a fire broke out in Bouglogne-Billancourt, west of Paris, Friday, Dec. 16, 2016. French police are investigating a fire that broke in a migrant workers' center near Paris and left two people seriously injured. (AP Photo/Michel Euler) (The Associated Press)

Fire fighters get out of a migrant workers' center after a fire broke out in Bouglogne-Billancourt, west of Paris, Friday, Dec. 16, 2016. French police are investigating a fire that broke in a migrant workers' center near Paris and left two people seriously injured. (AP Photo/Michel Euler) (The Associated Press)

A migrant and a fire fighter stand next to a fire brigade truck outside a migrant workers' center after a fire broke out in Bouglogne-Billancourt, west of Paris, Friday, Dec. 16, 2016. French police are investigating a fire that broke in a migrant workers' center near Paris and left two people seriously injured. (AP Photo/Michel Euler) (The Associated Press)

French police are investigating a fire that broke out in a migrant workers' center near Paris and left two people seriously injured.

Nanterre prosecutors' office said the fire started around 3:30 a.m. on Friday in the outskirts of the city of Boulogne-Billancourt, west of Paris. Investigators have yet to determine whether the fire was of criminal origin.

The two people were seriously injured when they jumped out of the building's upper windows to escape the flames, while five others suffered minor injuries.