Alcohol appears to be a factor in a street race which ended with a car submerged in the Waikato River, police say.
Three people managed to escape and swim to safety, narrowly averting a disaster, according to Waikato police.
Acting Senior Sergeant Dale Smith said emergency services were called to Great South Rd in Ngaruawahia shortly after 2am today.
"Initial reports were the three occupants of a Toyota Altezza car were unaccounted for after the car had hit a bank and crashed into the Waikato River," Mr Smith said.
"Fortunately, before responding police and fire rescue boats arrived, the 19-year-old male driver and his 17- and 31-year-old male passengers managed to make their way ashore."