Firefighters rescued 24 riders who were stranded for hours Sunday atop a roller coaster at Six Flags America in Largo, officials said.
"All riders safely on the ground," the Prince George's County Fire Department tweeted shortly after 7 p.m.
Earlier, Fire Chief Marc Bashoor reported: "Operation going as smooth as can be expected. Patrons being evaluated."
The Joker's Jinx stalled at about 3 p.m., park officials tweeted, stranding the riders on a high curve.
"All riders are safe, upright and being helped off the ride with PGCo Fire support," officials reported.
A short time later, Bashoor tweeted that firefighters had "made...