Across D.C. and the suburbs, voters today are encountering very long lines as the arrive at their polling places, with some declaring that today’s queues are the longest they’ve ever encountered.

Submitted by readers throughout the District and Maryland, we’re posting images of long waits at the polls today. In some places, the lines are thinning out as the day continues, but at some venues, the wait has been particularly onerous.

At D.C.’s Precinct 19, located at Dunbar Senior High School at 1301 New Jersey Avenue NW, some voters this morning waited nearly three hours. In that span, electronic balloting machines appeared to be offline, and the directions given by poll workers telling voters to separate into alphabetized groups were often unclear. In fact, voters were supposed to separate into shorter lines according to their single-member districts.

For voters needing provisional ballots, the process was even more confounding. Rather than remaining in their geographically relevant line, provisional voters were supposed to queue in the line for the last single-member district line.

And when voters finally reached balloting stations, many of which were short on paper ballots and pencils, the instructions became even more opaque.

“I’m only gonna say this once—once you’ve completed your ballot front and back, put it in the machine at the back,” a poll worker announced. On a crowded Election Day, it sounded like line that bore repeating.

Amanda Mattos contributed reporting.