Fire Rescue Victoria (FRV) is currently undergoing a widespread IT systems outage.
The service first confirmed the outage in public in a tweet at 10:45am.
“FRV is experiencing tech issues with our IT systems," it said.
"Crews and trucks are continuing to be deployed in response to incidents & community safety has not been compromised.
"We will provide further info as it becomes available.
"The community should continue to call 000 in an emergency.”
Fire Rescue Victoria’s website was briefly down but was restored, with a brief statement.
According to the ABC, the outage also affects Fire Rescue Victoria’s telephone system.
The ABC said premier Dan Andrews has been briefed.