ALLENTOWN, Pa. -

A middle school in Allentown was put on lock-down three times Monday afternoon.

District officials said the first lock-down happened at Harrison Morton and Sheridan Elementary after shots were fired in the neighborhood.

No one was hurt, police said.

Then, Harrison Morton was put on lock-down two more times after a suspicious car and a suspicious person were reported near the school.

The final lock-down was lifted around 4 p.m.