A New Jersey police officer called in to "Fox and Friends" this morning, detailing his heroic actions to save passengers aboard the Amtrak train that crashed near Philadelphia last night.

"It's my job. That's what I was put on this planet to do," said Officer Michael Keane. 

As of this morning, six deaths have been confirmed in the crash, with more than 140 injured.

Keane said he was riding in the last car when the crash happened. He said the scene was "chaotic," so he tried to assess the situation and quickly grabbed a flashlight from a conductor who was shaken up. 

Keane said the first thing he did was give himself and his fiance a "quick check" and then went "to work" helping others.

He said he observed a wide array of injuries, including scrapes and bruises, but also very bad lacerations. Keane said he's very sore, with pain throughout his body this morning. 

Steve Doocy asked Keane what he thought this morning when he saw the scenes of twisted metal. 

"The guardians were working overtime last night. I had them out in full force. I didn't see that image until this morning. From that aerial view there? Luck," said Keane, who was on his way home from the Police Unity Tour in Washington, D.C. over the weekend.

Earlier on the show, a passenger on the train named Paul Passamano tearfully recounted Keane's actions aboard the train. 

"I want to tell him thank you. He saved our lives and he saved many other people's lives. He went back into that train and started helping people," said Passamano, who was on the train with his wife.

As many as six more people remain critically injured, some were unaccounted for and more than 140 more riders were being evaluated and treated at local hospitals, as federal investigators were on scene to determine what caused the accident. Amtrak and city authorities estimated that 238 passengers and five Amtrak employees were on the Northeast Regional Train 188, traveling from Washington, D.C., to New York City, when it went off the rails at about 9:30 p.m. local time. As the train neared a curve in a residential area of Port Richmond, it suddenly slowed, according to one witness.

Read the full story at FoxNews.com.

Watch the emotional interview above and stay tuned to Fox News Channel for continuing updates on the tragedy.