UPDATE: Toowoomba power cut affects 1700 customers
Update, 4.40pm: Due to delays in repair progression, the Ergon Energy spokesman said the team are now expecting to rectify the issue for all customers by 6pm.
Update, 2.45pm: An Ergon Energy Spokesman said power has been restored to most residences and businesses affected by the outage.
As of 1.35pm only 86 customers remain without supply - those located in Duncraggon St, Geddes St, Leichney St, Long St, Perth St, Rivett St and Tolmie St.
"The crews isolated the section of the network where the cross-arm has broken," the spokesman said.
"This enabled power to be restored to the remaining customers from other feeders until the repairs are completed and the network is returned to its normal configuration."
He said the team was still working to restore all power by 4pm.
Earlier, 12pm: MORE than 1760 Toowoomba residents are without power due to a broken electrical cross-arm.
The power outage began at 10.40am and affects Ergon Energy customers in Centenary Heights, South Toowoomba and the CBD.
An Ergon spokesman said a team had been dispatched to identify and fix the issue.
"We have dispatched a crew to patrol the line," he said.
"They have found a broken electrical cross arm, although we have not been given its location.
"We are expecting to have the power back to these areas by 4pm."
He said some residents could have their power returned earlier.
"They often reduce customers off by doing some work to limit the power shortage to a smaller area," he said.
"We are waiting to see if this is a possibility."