OAKLAND — Police are investigating two Oakland homicides after a man was shot to death Saturday morning in Lakeside Park and another man died of multiple lacerations in a residence Friday night, authorities said.

The names of both victims have not yet been released.

The fatal shooting happened around 7:17 a.m. Saturday in the 300 block of Grand Avenue at Lee Street in Lakeside Park. The man was pronounced dead at the scene. Police are trying to determine a motive for the shooting and no suspect information has been released.

The other victim, believed to be a man in his 50s, was found around 11 p.m. Friday inside a residence in the 1500 block of Jackson Street. Police said he had multiple apparent lacerations but did not provide any more details.

Police have also not yet said if the man lived at the residence. A motive has not been released and no arrests have been made.

The killings are the 7th and 8th homicides investigated by Oakland police this year. Last year at this time, police had investigated the same number of homicides in the city.

Anyone with information about either homicide may call investigators at 510-238-3821 or 510-238-7950.

Harry Harris contributed reporting to this story.