Some Allentown middle school students got a break from classes Monday.

Trexler Middle School, at 851 N. 15th St., was evacuated because of an odor of natural gas inside the school.

Students, staff and faculty were relocated to other locations, said Kimberly Golden-Benner, a spokeswoman for the district, adding that the students were to be dismissed from those locations at their regular end-of-school-day time.y.

Trexler Middle School parents and guardians were notified about the situation via the district's school messenger system, Golden-Benner said.

All after-school activities were canceled Monday. School will be in session Tuesda

Firefighters and UGI went through the building and could not find the source of the odor, said fire officials, adding that no one was sickened or injured.