OKLAHOMA CITY (AP) - Thousands of homes and businesses lost power and Oklahoma's two largest school districts canceled classes for the rest of the week as a winter storm brought freezing precipitation and sub-freezing temperatures to the region.

Oklahoma Gas and Electric reported nearly 20,300 customers without power late Wednesday after freezing drizzle fell across much of central Oklahoma. There were no reports of accidents or injuries.

Earlier in the day, Oklahoma City school Superintendent Karl Springer and Tulsa Superintendent Keith Ballard announced they had canceled classes for Thursday and Friday because of concern for students who must wait outside for buses or who walk to school.

The frozen precipitation was expected to end Thursday, but temperatures aren't expected to climb out of the teens and 20s during the day and will plummet into the single digits and below at night.