CHICAGO (STMW) — Students and faculty arrived at a North Lawndale elementary school Monday morning to find a water main had burst and flooded the basement, forcing some classes to relocate.

The main broke near the basement of the south building on Mason Elementary School’s campus at 4217 W. 18th St., according to a Chicago Public Schools statement.

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Students in that part of the school were relocated to another central building as crews cleared water from the basement, the statement read.

They will return to the south building once repairs are made, which is expected to be completed “in the coming days,” the statement said.

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“CPS wants to ensure all of its students have safe and comfortable learning environments. After flooding was identified this morning at Mason Elementary’s South Building, school officials followed protocols and relocated classes to available space in the school’s Central Building to ensure no classroom time was lost,” the statement said.

The cause of the water main break was unknown.

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(Source: Sun-Times Media Wire © Chicago Sun-Times 2015. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)