A man was struck and killed by a downtown 1-train in Midtown today, an MTA spokesperson said.

The victim was at the West 50^th Street and Broadway station when he was struck just before 3 p.m., it was not immediately clear how the man ended up on the tracks, officials said.

Southbound 1-trains will be running on the express track between 96th Street and Times Square and all northbound trains are bypassing 50^th Street, the MTA said.