A power failure near the Jay Street-MetroTech station has thrown weekend commutes into chaos, causing massive disruptions on four lines.

Earlier today, the MTA announced the power outage in Brooklyn knocked out A, C and F service between Brooklyn and Manhattan entirely, and slowed northbound A, C and F trains elsewhere. The power outage caused the F to stop running between 2nd Av and 4th Av-9th Street in either direction, and G train service is suspended between Church Av and Court Sq, otherwise known as the entire line.

Service has been restored between Brooklyn and Manhattan, but the MTA tweeted that there would be "extensive delays" on the A, C, E, F, G, 4 and 5 trains:

A Con Ed spokesperson told Gothamist that there was a transmission disturbance that caused electrical damage to equipment in a substation that serves Downtown Brooklyn. Crews are investigating the incident, which caused a voltage dip that then impacted subway signals, and are attempting to restore service. While there wasn't a widespread power outage due to the substation issue, the spokesperson said some nearby buildings lost elevator service.