Some 35 people trapped when the Washington Monument's (search) elevator stalled about 120 feet into the ride on Thursday were freed by rescuers and walked down to the ground.

About 25 people at the top of the monument had to take the stairs down 500 feet, a spokesman for the National Park Service (search) said.

Bill Line said a park ranger riding with the passengers radioed colleagues on the round who got help. The elevator has doors on two sides. Authorities opened one door, allowing passengers to step out onto the stairs.

A 17-year-old girl was hospitalized with breathing trouble.

The incident happened about 30 minutes before the monument closed for the day. Line expected it was to open as normal on Friday.

The monument elevator also got stuck on May 16. Twenty-five people were rescued.