Police conducted searches on Friday night after attorney Raid Mahamid, 49, a resident of Umm al-Fahm, fell from a motor boat during a boating trip with his friends in the Sea of Galilee near Kibbutz Ein Gav earlier in the afternoon, Ynet reported.
After Mahamid's friends tried unsuccessfully to rescue him, they contacted emergency services.
Police boats, jet skis, a helicopter and a drone were dispatched to assist with the search as officers and volunteers scanned the coast for signs of Mahamid, the Ynet report added, saying the police planned to continue the search in the morning.
On Saturday morning, since Mahamid had not been found, volunteers joined the search efforts.
Drowning incident
On Friday morning, a 30-year-old fisherman drowned after he was caught in the waves at a beach in Ashdod, the report said.
Firefighters recovered his body and an MDA team confirmed that he showed no signs of life.