ELIZABETH, N.J. (CBSNewYork/AP) — Two men are safe on the ground after their cargo crane cabs collided 50 feet above a container ship pier in New Jersey.

Port Authority Police spokesman Al Della Fave says the straddle cranes were moving containers at the Maher Terminal at Port Elizabeth when the accident occurred around 8 a.m. Friday.

The cabs sustained heavy damage.

Della Fave says the agency’s emergency services unit used an Elizabeth Fire Department aerial truck to rescue the operators by 9:10 a.m.

One of the men refused medical treatment and the other was taken to a hospital complaining of back pain.

Earlier this week, The Department of Homeland Security and a team of Coast Guard officials searched a cargo ship at Port Newark, suspecting stowaways on board, inside one of the containers.

PHOTOS: Stowaway Situation at Port Newark

After an exhaustive search, no stowaways where discovered.

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