Lockdown Lifted at High School in Anne Arundel County; Missing 18-Year-Old Found

A lockdown at South River High School in Anne Arundel County was lifted Thursday afternoon after a "critical missing" 18-year-old was found safe.

School officials had locked down the school due to "a threat directed at the school," they said earlier Thursday. Anne Arundel County Police later said that an 18-year-old man was believed to be heading toward the school, and numerous officers were looking for him out of an abundance of caution.

The students were safe, school officials posted on Twitter.

The 18-year-old is not a student at any school in Anne Arundel County, but he ives in the area, police said. He was considered a critical missing person "due to the fact that we believe he could be a danger to himself," police said.

The missing young man was found sometime before about 4:15 p.m. in the South River/Edgewater area, police said. He is safe.

Dismissals at South River High School and the Center Of Applied Technology South (CAT-South) were temporarily delayed due to police activity, school officials said. They said buses would depart "under police supervision."

After-school activities and evening high school at South River are canceled Thursday.