An inquiry into the deaths of two teenage girls who were killed crossing a train line in Essex has begun.
Olivia Bazlinton and Charlotte Thompson were hit by a train on a foot crossing at Elsenham station on Saturday.
It's thought the girls were trying to catch a train and didn't see the other train coming. Reports say the station's warning lights were working properly.
The exact details of the accident are still unclear, but the speed the train was travelling will be investigated.
Olivia's father said she had celebrated her 14th birthday last Monday.
He paid tribute to his daughter: "We - her father, mother, stepmother, sister and brother and the rest of the family are devastated by her loss - we are already missing her."
Dozens of bouquets of flowers have been left at the scene of the girls' deaths.