Sonar equipment used in search for actress Naya Rivera

The search for "Glee" actress Naya Rivera will resume Monday morning. The 33-year-old vanished last Wednesday while boating with her son on Lake Piru, north of Los Angeles. He told investigators they went swimming, but Rivera never made it back on the boat with him. Authorities are using sonar equipment to search for Rivera, who is believed to have drowned.