Witness of NYC explosion at major transit hub: 'I believe in God today!'

Christina Bathea, 29, said she heard a bang, saw smoke and ran.

— -- Christina Bethea was on her way to her security guard job in Midtown Manhattan early this morning.

But she never made it to work.

The 29-year-old had arrived at the sprawling Port Authority terminal after taking a bus from her home in Yonkers, north of New York City, and then a subway. She was about to walk out of the transit hub to her job.

“I walked down the stairs to go through the pathway that connects to the Port Authority and when I got to the end of it I heard a noise that went ‘boom’,” she told ABC News. “It sounded like a big gunshot. One time.”

A 27-year-old suspect "intentionally detonated" an improvised, low-tech explosive device that was based on a pipe bomb and was attached to the suspect with hook-and-loop fasteners and zip ties, authorities said. Three people were injured.

Bethea heard the sound first. Then she saw smoke.

“I saw that so I started running to get out of there,” she said. “I didn’t know what was going on.”

“We all just ran,” she said. “We all ran up the steps, and someone said, ‘What the hell was that?’”

Police arrived quickly, she said.

“Not even two minutes passed and all the police rushed into the Port Authority,” she said.

After calling her family and her best friend, Bethea heard the news that the explosion and smoke were from a detonated device.

Realizing she survived what may have been an attempted bombing, Bethea decided to head back home.

“It shakes you up,” she said. “If I didn’t believe in God, I believe in God today,”

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