[This post has been updated]

Metro’s Red Line experienced delays Friday mornings because of a switch problem that occurred about 8 a.m., according to a transit authority spokesman.

Officials are still trying to determine why the switch malfunctioned near Dupont Circle, causing a red signal to be displayed for approaching trains, said Dan Stessel, Metro’s chief spokesman. Glenmont-bound trains had to “stop at stop signals and get verbal permission to move over their radios,” he said.

“That slows down the parade,” Stessel said. The problem at Dupont was resolved within minutes, he said, but the issue caused 10- to 15-minute delays along the line.

“We don’t know what caused the switch problem,” Stessel said. “We have to make sure trains operate safely as they make their way down the line.”

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