GREENWICH - Police made their way onto several Metro-North trains Wednesday evening to search for a robbery suspect.

Authorities say someone held up a People's United Bank near the Greenwich train station and apparently fled toward the station following the heist. Police asked the rail line to shut off power so they could search not only the trains, but nearby tracks.

All on-train searches were concluded by around 5:45 p.m., but the suspect still remains on the loose. Greenwich police say they will release a surveillance photo of the alleged suspect, who never actually produced a gun in the bank.

He did make off with an undisclosed amount of money, however.