Man charged over indecency on NSW trains

A man arrested for filming himself performing an indecent act on a Sydney train had 1400 child abuse images on his phone, police allege.

A woman travelling on a train through the western suburbs in May noticed the man next to her filming himself.

The 52-year-old was arrested after a short struggle before being charged with two counts of committing an act of indecency and possessing child abuse material.

An examination of his phone prompted police to lay nine more indecency charges.

All the offences allegedly occurred on the Sydney rail network.

He's due to face Parramatta Local Court on July 13.