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Updated 4 minutes ago

The light rail system in Pittsburgh is experiencing delays Friday morning due to a mechanical issue at Allegheny Station.

Riders are experiencing 15-20 minute delays due to the issue.

The Port Authority of Allegheny County posted to Twitter saying crews are working on a fix to restore regular service.

Crews have discovered the power issue at Allegheny Station and are working to fix. Delays remain 15-20 min pn both Red and Blue lines

— Port Authority PGH (@PGHtransit) February 10, 2017

Crews have discovered the power issue at Allegheny Station and are working to fix. Delays remain 15-20 min pn both Red and Blue lines

Light rail vehicles are operating off schedule due to an power issue. Our crews are working on a solution

— Port Authority PGH (@PGHtransit) February 10, 2017

Light rail vehicles are operating off schedule due to an power issue. Our crews are working on a solution

The agency also posted Friday morning that crews will be working at the upper station of the Mon Incline, but the incline is open.

Thursday the agency posted that the Blue line can expect 5 to 10 minute delays between 9:30 a.m. and 2 p.m. for tree trimming.

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