PARIS (Reuters) - French Interior Minister Christophe Castaner, in a letter to police prefects seen by Reuters, called on Sunday for increased vigilance to prevent possible revenge attacks following the death of Islamic State leader Abu Bakr al-Baghdadi.

“... The possible intensification of jihadist propaganda following this death, which could possibly call for acts of vengeance, requires the most extreme vigilance, notable during public events in your departments in coming days,” Castaner said.