A woman crushed to death by an approaching Airport Rail Link train at Ban Thap Chang Station was seen on CCTV walking towards to the track and falling onto it, Airport Rail Link vice chairman Suthep Phanpeng said
The incident at 7am disrupted train services to and from Suvarnabhumi Airport. The station is the third stop from the airport.
Services were resumed about an hour later.
Suthep said the woman has yet to be identified as none of her relatives have contacted the State Railway of Thailand.
Suthep said CCTV footage showed that the woman was not using a mobile phone.
He said she walked about three steps towards the track and fell onto it. Nobody was standing nearby, he added.
He said it could not yet be concluded that this was a suicide.
Police will analyse the footage, he said.
Suthep said the woman was a regular passenger, taking trains to inner Bangkok.
He said she was seen off at the station by a man every morning, and that was the case again on Monday morning.
Witnesses at Ban Thap Chang Station said they saw the woman crying and heard her saying she wanted to die.
They saw her jump onto the track, moments before the train arrived.