CCTV footage of a man wanted over two incidents at St Albans train station. Credit:Victoria Police

A half-naked man stalked two women and performed a lewd act in front of each one as they walked alone at a train station in Melbourne’s west.

The man caught the attention of the women by calling out to them as they walked from St Albans train station.

One woman was walking on Main East Road when the man, wearing no pants, called out before masturbating in front of her about 10pm on June 17.

He approached her a further two times, with his pants pulled down, and did the same.