Police have initiated an attempted murder investigation after a male suspect allegedly stabbed his 59-year-old father in the neck in Mililani Thursday night.

Emergency Medical Services responded to a home at 94-0443 Haiwale Loop at approximately 7:45 p.m. and treated the victim. He was taken to a trauma hospital in serious condition.

Police said the suspect, 36, fled the scene prior to the arrival of police.

There are no arrests at this time.