WASHINGTON — Delays remain on Metro’s Red Line after an arcing insulator fire at the Wheaton station on Wednesday morning.

Red Line: No longer single tracking. Residual delays continue in both directions due to an earlier track problem at Wheaton.

— Metrorail Info (@Metrorailinfo) May 23, 2018

Trains were single tracking between Wheaton and Silver Spring for nearly two hours as a result of the fire. Pete Piringer, a spokesman for the Montgomery County Fire Department, said on Twitter firefighters put out a fire on a burning insulator near the platform of the Wheaton station.

11171 Georgia Av., Wheaton Metro, FFs investigating burning/arcing insulator along tracks at N end of platform, no smoke (exhaust fans operating) WMATA ERT Emergency Resonse Team enroute

— Pete Piringer (@mcfrsPIO) May 23, 2018

Trains stopped single tracking around 9:30 a.m., but WMATA said residual delays continue in both directions.