Police are investigating two separate carjackings that occurred Saturday.
The first incident happened near Balboa Park about 7:29 a.m., police said. The 63-year-old male victim started his car in the 300 block of Ocean Avenue and then got out to clean something off the window. A man who appeared to be in his 20s then walked by and threatened the victim with a knife.
The crook shoved the victim aside, got into the car and drove off, police said.
The second carjacking happened in the Bayview about 6:30 p.m., police said.
In that incident, the 26-year-old male victim was detailing his car in the 1300 block of Underwood Avenue when two men who appeared to be in their 20s approached, police said. One of the men pulled out a handgun and demanded the victim’s car. The crooks then got in and took off. No arrests were made in either incident.