Separate fires early today damaged a two-story Kaimuki home at 1167 20th Ave. and the garage of an Aliamanu home at 4134 Keaka Drive.

Damage to the Kaimuki home was estimated at $200,000 to the building and $75,000 to its contents, said Honolulu Fire Department spokesman Capt. Emmit Kane. No one was at home when the fire started, Kane said.

The Kaimuki alarm was received at 4:14 a.m. Eight fire companies responded to the fire, which was reported under control at 4:27 a.m. The cause was under investigation.

The 3:46 a.m. Aliamanu fire was contained to a detached garage, Kane said. Damage was estimated at $20,000 to the building and $8,000 to its contents.

Baby's injuries investigated

Police have opened a first-degree assault investigation into "suspicious injuries" suffered by a 3-month-old boy.

The infant was brought to Kaiser Moanalua Medical Center with head and torso injuries, and police were notified by hospital staff at 10 p.m. yesterday.

Motorcyclist critically hurt

A 39-year-old Mililani man was critically injured yesterday in a motorcycle crash in Kalihi.

Police said the man suffered head and leg injuries when he lost control and fell off his speeding motorcycle on Bernice Street at 6 p.m.

The man was not wearing a helmet, police said.

Stabbing victim is identified

The medical examiner's office today identified a man stabbed to death yesterday in Waipahu as St Salle, 26, of Makiki. Salle was stabbed in the chest with a kitchen knife in a two-story unit at the Oasis at Waipahu apartment complex, 94-207 Waipahu St. at about 4:30 a.m.

Police Lt. David Kamai said second-degree murder and attempted-murder charges were pending against a 27-year-old man who was arrested in Apartment 168, where the stabbing occurred.