A power outage at DeKalb Avenue in Brooklyn prompted a mass evacuation from the 36th Street D/N/R station Tuesday morning, according to the MTA and straphangers documenting the hectic scene on Twitter.

"Very dangerous situation at 36th St. Evac due to power outage," Patrick Corbett tweeted, adding, "Very tense on platform because exits at one end only."

If this sounds familiar, you're not imagining it: there was a power outage at DeKalb Avenue on Sunday, prompting a similar cascade of service changes and delays.

As of 9:00 this morning, there is no B train service between Brighton Beach and Bedford Park Boulevard in both directions. Southbound D trains are running on the C line from 59th Street to West 4th Street, and then over the F line to Coney Island. Northbound D trains are terminating at 36th Street in Brooklyn. R trains are running on the N line between Atlantic-Barclays and Canal Street in both directions, and "some" southbound N and Q trains are terminating at Canal Street.

A spokesman for Con Edison told Gothamist that crews have been dispatched to the intersection of DeKalb and Fulton Streets, following reports of a "voltage dip."

Also, expect "extensive delays" on the C, F, N, Q, R, and W trains. In the words of the MTA, "allow additional travel time." At least it's not Monday?

Check here for the latest service updates.

Transit advocates took the opportunity to nudge the rage towards Governor Cuomo, who is responsible for funding the MTA.

If you found this commute frustrating, tell your state representatives and Governor Cuomo to stop robbing the MTA of badly needed funding and figure out a way to come up with more cash for a 21st Century transit system.

[Update 10:00 a.m.]: B, D, N, Q, R and W service has resumed as of 9:40 a.m., according to the MTA, but delays are still extensive.