Wellington Police are seeking witnesses to a serious assault this morning in Moera, Lower Hutt.
Detective senior sergeant Martin Todd said police responded to a report of five or six people fighting on Trevethick Grove at around 2.15am.
"On arrival, one man was located unconscious and had lost a lot of blood. He has received medical treatment and does not have life-threatening injuries."
At the same time, an 18-year-old man was taken to Hutt Hospital by his friends with critical injuries, Todd said.
The man has undergone emergency surgery and is currently in Wellington Hospital.