At least 20 Allentown residents were back home Monday morning after being forced to evacuate because of a gas leak.

Emergency officials were called to the area of Liberator and Catalina avenues around 11:30 Sunday night.

Reports from the scene indicated that the leak was coming from an area that utility crews had been working on during the day Sunday.

UGI crews were on the scene and managed to fix the problem by 1 a.m. Monday.

It's still not clear what caused the leak.

No injuries were reported.