CHICAGO (CBS) — Four days after the city’s internal alarm system went out, officials continue to work and try and fix the problem.

As WBBM Newsradio 780’s Mary Frances Bragiel reports, the city’s entire alarm system melted down on Friday.

But Roderick Drew, the spokesman for the city’s Office of Emergency Management, says Chicagoans should have no fear, as the in-house PA system and radio have been in place as the backup. He also says there have been no reports of any problems.

LISTEN: Newsradio 780’s Mary Frances Bragiel reports

Newsradio 780 only learned Monday about the alarm system situation.

The alarm system is used by 911 dispatchers use to alert firefighters and paramedics about emergencies.

One official likens the backup system to a “big party line,” similar to an old-fashioned rural telephone system.

OEMC officials say the problem is being identified, and that staff are troubleshooting the situation in order for it to be repaired.

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