Emergency service has been restored across much of the Palm Springs area following an outage

By Thursday afternoon, 911 lines were back in service in several parts of the Coachella Valley after an hours-long outage. But some problems remained.

Police in Palm Springs and Cathedral City said their lines were working, while Indio police said they were working for people who use some cell phone providers — but not for people who call Verizon.

It was unclear whether Verizon customers had the same problem reaching other police departments, although Palm Springs and Cathedral City authorities did not mention such a problem.

Palm Springs police first reported late Thursday morning that the city's 911 emergency number was down and directed residents who needed urgent assistance to call alternative numbers or text 911.