The California-based rock band Eagles of Death Metal was in the midst of a European tour following its fourth album release when the musicians found themselves caught up in a terrorist attack at the Paris concert hall where they were due to perform Friday.

The concert hall was one of several entertainment sites around Paris that were targeted by gunmen and bombers, killing dozens of people in what President Francois Hollande described as an unprecedented terrorist attack.

It was not immediately clear whether the band had taken the stage before gunman stormed the Bataclan music hall in the French capital.