The prosecutor's office in the Paris suburb of Bobigny announced the arrest in a statement Monday. It is part of an investigation prompted by a lawsuit by Air France for reckless endangerment. The suspect was not identified. The lawsuit does not name a perpetrator but leaves it to investigators to determine who might eventually be sent to trial. The bomb scare Sunday was the fourth such hoax against Air France in recent weeks, and comes as France and several other countries are on heightened alert for extremist violence.