A heavily armed gunman opens fire on a train between Paris and Amsterdam before being subdued by two "heroic" US passengers.
Three people have been wounded after a gunman armed with a Kalashnikov opened fire on a high-speed train travelling from Amsterdam to Paris.
The suspected gunman, a 26-year-old Moroccan national, was arrested when the Thalys train stopped in Arras, in northern France.
The man, who was also armed with a knife, was subdued by two American passengers who are US military servicemen.
French interior minister Bernard Cazeneuve said the men were "particularly courageous and showed extreme bravery in extremely difficult circumstances".
US President Barack Obama hailed the pair's "courage and quick thinking", with the White House added that their "heroic actions may have prevented a far worse tragedy".
One of the servicemen, Spencer Stone of the US Air Force, was wounded by a knife and is receiving hospital treatment.
He and fellow serviceman Alek Skarlatos, who recently returned from a tour of Afghanistan in the National Guard, overpowered the gunman.
Their friend, student Anthony Sadler, also helped to subdue the suspect and a Briton, Chris Norman, assisted with tying him up.
Another man, who has not been named but reportedly had his throat cut, is in a critical condition.