Aside from a possible gang-related shooting at the Belmont Park parking lot Sunday, police officials reported a Memorial Day weekend without significant incident. No one was injured in the May 24 shooting and police are continuing to investigate, said Lt. Jorge Duran, a San Diego Police Department gang unit investigator. Police are searching for witnesses, Duran said. “We are hoping somebody in the community may have seen or heard something,” Duran said. “Tying to find folks to cooperate with the gang unit is a challenge.” Beach-area patrols arrested 13 suspected drunken drivers during a DUI checkpoint along Garnet Avenue on Friday, May 22. Police handed out about 122 misdemeanor alcohol citations in Mission, Ocean and Pacific beaches, according to Northern Division Capt. Shelley Zimmerman. The second Memorial Day weekend since the start of a beach alcohol ban — a temporary ban last summer and now a permanent ban approved by voters last year — lured 750,000 sandal-clad tourists and families over three days. “Did the alcohol ban play a role? …Yes, without question that the atmosphere is very relaxing, very welcoming, even though we had 500,000 more people compared to last year,” Zimmerman said. Officer Mark McCullough said Friday’s DUI checkpoint resulted in several arrests for driving without a license and other offenses. Police did not set up checkpoints after Friday. An increase in arrests, however, means police are doing their job, McCullough said. “It’s not that there’s more drunk drivers, we just have more enforcement… If we’re not seeing an increase in alcohol-related vehicle collisions, then we know that we’re holding the line,” McCullough said. He said no major collisions were reported. Lifeguards also had their hands full over the holiday weekend. San Diego Lifeguard Services Lt. Andy Lerum said strong currents and throngs of people made for quite a bit of rescue activity. Lifeguards reported 219 water rescues and 229 calls for medical attention. “Overall, it was pretty busy but nothing spectacular,” Lerum said. “There were no major incidents to report.”