Using canines, police searched for drugs or weapons at Wando High School on Wednesday, resulting in two arrests.

Mount Pleasant police searched the cars in the parking lot on campus, and several vehicles were identified by the canines for closer examination, according to Maj. Stan Gragg.

One student was charged with simple possession of marijuana and drug paraphernalia; another student was charged with illegal possession of weapons on school property after knives were found.

The pre-planned search is a common exercise that many schools in the district participate in throughout the school year, according to Charleston County School District spokesman Jason Sakran.