An emergency worker is facing termination and three others suspensions in connection with the death of a Pittsburgh man who waited 30 hours for an ambulance during a snowstorm last month.

Public safety director Michael Huss says radio transmissions indicate emergency personnel showed a lack of compassion in dealing with calls before 50-year-old Curtis Mitchell died on Feb. 7.

In a recording played at a news conference Tuesday, emergency workers speaking to each other complained that they weren't running a "cab service."

Paramedics' union President Anthony Weinmann says the union will fight the action against its two members. The other two workers facing punishment are managers.

Mitchell and his girlfriend placed 10 calls to 911 before he died.