Police arrested a band teacher at a Miami-Dade County high school Tuesday afternoon on two counts of unlawful sexual activity with a minor after police said he had a sexual relationship with a student.

A former band teacher at South Dade Senior High School was arrested over the weekend, years after he allegedly kissed a student on the mouth.

MIAMI-DADE COUNTY, Fla. – Miami-Dade County has two evacuation centers open for residents. In Monroe County, three shelters are open. The shelters are located at:Key West High School, 2100 Flagler Avenue. Coral Shores High School, 89591 Overseas Highway, MM89.9 in Tavernier. MIAMI-DADE COUNTY CLOSINGSMiami-Dade County transit operations stopped at 2 p.m. on Sunday in preparation for Eta.

Police locked down the school as a precaution as authorities searched the campus. “As a result of the lockdown, police came to the school,” Carvalho said. According to Carvalho, the suspect was in possession of an AR-15 that was confiscated by authorities. He said the suspect was not affiliated with the school nor targeting anyone at the school. The barrel of his assault rifle was protruding from his backpack as he rode home later in the morning, which caused the scare at the nearby high school, authorities said.