Metro rail is running again, passengers on board. Things look back to normal #abc13 — Kaitlin McCulley (@KaitlinMcCulley) March 17, 2015

HOUSTON -- METRO light rail is back up and running after being shut down as crews investigated reports of a 'collapse or earth movement' downtown.It happened adjacent to the rail line near the intersection of Main and Capitol. According to METRO, a large building is under construction at 609 Main. Included in the construction is a tunnel that runs under the METRO track.There were reports of 'shifting' of the ground, so at the request of HPD, METRO suspended service.After running some tests, which included the rail line running without passengers, officials deemed it stable. No injuries were reported.We're working to gather more information on this story.Stay with Eyewitness News and abc13.com for the very latest.