Two traffic stop-attempts overnight in the East Bay both resulted in fatal officer-involved shootings, being the third and fourth officer-involved shootings in the Bay Area in just over 24 hours.

The first occurred in Union City at around 10 p.m., after two patrol officers attempted to stop a vehicle on Dyer St., south of Meteor Way at about 10 p.m.

According to Union City police, the driver fled from the vehicle and tried to flee on foot before confronting the officers with a handgun, reportedly aiming it at them.

The officers fired their weapons several times, police said, mortally wounding the suspect, who died at a hospital a short time later.

A loaded handgun was found at the scene of the shooting, police said.

The Alameda County coroner's office was attempting to identify the man on Sunday.

The second fatal officer-involved shooting occurred early Sunday morning in Hayward.

Hayward Police told KTVU that officers began following a suspicious vehicle around 3 a.m. and after a few minutes they attempted to stop the car on the 700 block of Fletcher Ln.

According to police, after the driver, who was later identified as Arthur Packman, 23, of Oakley, had pulled over and the officers had exited their patrol car, the suspect car sped off.

But instead of just trying to get away, police said that Packman and his passenger tried to run down one of the officers. The officer fired at the car, which kept going, only to crash into a sign a few blocks away, near the Casa Blanca Motel on D St.

"I heard ‘pop.pop, popp pop,’ and that woke me up," said Sabrina Dorsett, who lives in the area.

After the crash, the driver fled the vehicle but did not make it far before responding officers caught him.

The passenger was found dead in the vehicle and though it was unclear when the story was first being reported, investigators confirmed later Sunday morning that the suspect died from the officer's gunfire.

"The officer responded to a threat," said Sgt. Eric Krimm of the Hayward Police Dept. "The driver could've complied, followed the directive of the officer and not tried to run them over."

At the time of the incident, a civilian was in the patrol car on a ride-along with the officers.

Hayward Police said that the driver was being questioned about the incident, but as of Sunday morning it was still unclear why he attempted to hit the officer with his vehicle.

These two fatal officer-involved shootings follow one in San Francisco early Saturday morning and another in San Jose that afternoon.

The earlier incident occurred at about 12:30 a.m. Saturday, after Daly City police pursued a stolen vehicle with two people inside of it into San Francisco.

After giving chase for several miles, the suspects abandoned their vehicle in San Francisco's Little Hollywood neighborhood. The suspects’ car, reportedly still in motion when the suspects exited it, finally stopped after it collided with a SFPD patrol car.

While the passenger immediately surrendered to Daly City police after abandoning the car, the driver ran away, reportedly with a gun in his hand.

Daly City and San Francisco officers later caught up with the fleeing driver, who allegedly raised his gun at them before a Daly City officer fatally shot him in the torso.

On Saturday afternoon, two San Jose Police officers gunned down a man after he led a 20-minute pursuit on Highway 85 and city streets, but not before the 25-year-old suspect pointed a gun at pursuing officers and rammed three police cars.

All four of these incidents come just days after two Santa Cruz police officers who were gunned down while they tried to interview a sexual assault suspect. Santa Cruz Detective Sgt. Loran "Butch" Baker, 51, and Officer Elizabeth Butler, 38, were allegedly shot to death by Jeremy Goulet, 35, while trying to interview him about a misdemeanor sexual assault in Santa Cruz. Goulet was later gunned down in a shootout with police.