A man who was waiting for Muni was ejected from a Market Street bus shelter Friday, by a gun-wielding mugger who allegedly beat his victim before sending him on his way.

It was 2:13 a.m. Friday when a 22-year-old man waited at a Muni shelter at Fifth and Market streets, close to the Westfield San Francisco Centre.

A man police say looked to be between 19 and 20 approached the waiting man and punched him "multiple times in the head." As the recipient of his blows fell to the ground, the attacker "pulled out a gun" and demanded his property.

When the victim handed over his cash and cell phone, his mugger told him to leave the area. The victim complied, found a phone, and called 911 to report the attack.

Crime is noting new for the area of Friday's mugging: As reported this January, Market between 4th and 5th is San Francisco's "most criminal" block, with 1,400 generated in that area in 2015.

In Friday's robbery and assault, police say, the victim was transported to San Francisco General hospital for lacerations sustained in the attack, and is expected to recover. According to the San Francisco Police Department, the suspect remains on the loose as of Monday morning.

Related: SF's Most Criminal Block Is [Drumroll] Market Between 4th And 5th