BERKELEY -- A young man suspected in an armed robbery pulled a gun on police Saturday afternoon and ran away before dropping the weapon and giving up, police said.

The juvenile suspect, an adult and two other juveniles all were arrested in connection with an armed robbery near the corner of Hillegass Avenue and Ashby Avenue shortly after 3 p.m., said Lt. Dave Frankel.

Frankel said the suspect endangered himself and others by drawing a weapon.

"Luckily he dropped the gun and ran another block before he gave up," Frankel said.

The other three suspects were detained without incident.

Frankel said two victims of the armed robbery called police at about 3:10 p.m. and said a group of young black men had robbed them of their personal belongings with a gun. Officers arrived and within minutes found the group and attempted to arrest them when the juvenile pulled out the gun and ran away, he said.

Frankel did not have the ages of the suspects but said the adult was booked into Berkeley city jail and the three juveniles were taken to the juvenile justice center in San Leandro.

Doug Oakley covers Berkeley. Contact him at 510-843-1408. Follow him at Twitter.com/douglasoakley.