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.
Della Fave says one refused medical treatment and the other was taken to a hospital complaining of back pain.
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