System-wide signal problem resolved after causing morning Metro delays

WASHINGTON - Metro says service is getting back to normal after the transit system experienced system-wide signal problems that caused delays across all lines for about an hour Thursday morning.

The problem was reported at around 9:41 a.m. . Metro spokesperson Dan Stessel says the system had lost the ability to remotely control line switches. The problem meant that all switches needed to be controlled manually - which led to the delays.

Metro tweeted at 10:43 a.m. that the problem had been resolved and that residual delays were to be expected.

It is unclear at this time what caused the signal problems.