SIMI VALLEY, Calif. (KTLA) -- Former First Lady Nancy Reagan slipped and fell Tuesday night as she arrived at the Ronald Reagan Presidential Library, but luckily she was caught before she hit the ground.

The 90-year-old former first lady was walking next to U.S. Sen. Marco Rubio (R-Florida) when her cane slipped, sending her tumbling.

Rubio caught Reagan before she hit the ground.

Secret Service and other crowd members quickly rushed in to assist Mrs. Reagan to her feet and a chair.

A library spokeswoman said Reagan was not hurt.

"She's just fine. Our aisles were crowded and she tripped on a stanchion, but recovered quickly, and we started the program on time," Melissa Giller, a spokeswoman from the library, told CNN.

Reagan was at the library to hear Rubio deliver a speech.

She was hospitalized after falling and fracturing her pelvis in 2008.