UPDATE @6:07 a.m.
Power has been restored to all DP&L customers in Montgomery County.
UPDATE @5:20 a.m.
Nearly 1,100 DP&L customers remain without power in Montgomery County.
We are working to learn when power will be restored.
Over 2,800 Dayton Power & Light customers are without power in Montgomery County this morning.
We are working to learn the cause of the outage and when power could be restored.
The outage comes as temperatures drop below zero.
In Harrison Twp., about 40 residents were without heat after water main breaks forced Vectren to shut off gas services.
RELATED: Still no heat for Harrison Twp. residents after morning water main break