WESTFIELD, N.J. (CBSNewYork/AP) — A Delaware man found outside a New Jersey elementary school with a loaded gun and additional ammunition is now facing numerous charges.

Union County prosecutors say police went to the Tamaques school in Westfield just before 4 p.m. Thursday after authorities in Delaware told them a man later identified as Thomas Wilkie was headed there and might be armed. Classes had already concluded, but the school went on lockdown because after-school activities were taking place.

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Wilkie, 46, was arrested after officer’s found him parked in the school’s parking lot, holding a .45 caliber pistol loaded with hollow-point bullets and two more loaded clips of ammunition on him. They say another 130 additional rounds were found in the trunk of his SUV.

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Authorities haven’t said why Wilkie drove to the school.

Wilkie’s been charged with weapons possession, possession of hollow-point bullets, and trespassing charges. If convicted of the most serious charges, he could face 5-10 years prison.

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(© Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)