The high-speed train operator Thalys is going to train its employees to respond to terrorist scenarios and dangerous situations following a report that a ticket inspector panicked during the Aug. 21 attack on a train to Paris.

The gunman was subdued by passengers, including three Americans friends, Alek Skarlatos, Spencer Stone and Anthony Sadler.

A report released Friday by Thalys points out that a ticket inspector ran away and locked himself in a luggage van with five other people without alerting the train's passengers. The report said he feared for his life and panicked.

Thalys announced it will train its employees to exhibit appropriate gestures and inform passengers properly in such situations.

The Thalys train covers four European countries: France, Belgium, Germany and the Netherlands.