A power outage at a major Brooklyn transit hub snarled subway service between Manhattan and Brooklyn on Sunday.

Metropolitan Transportation Authority (MTA) officials said that around 2 p.m., a power outage at the Jay Street-Metro Tech station disrupted service on the A, C, and F lines in both directions.

The agency said emergency responders restored train service about an hour later.

But commuters still grappled with extensive delays on those lines, as well as the G, E, 4, and 5 lines.

Track maintenance, as of 5:40 p.m., was causing delays on E and F lines, as well as the J and L lines. Visit mta.info to see current rail conditions.

Con Edison said damaged electrical equipment at a downtown Brooklyn substation caused the outage in Brooklyn.

Several buildings in the area also lost power.

Gov. Andrew Cuomo is directing the state's Public Service Department to investigate the outage.