Update, Monday a.m.: Ortiz remains sedated and in the ICU after an operation in which his gallbladder and part of his intestines were removed.
CDN 37, a news station in Santo Domingo, is reporting (in Spanish) that David Ortiz was shot in the back outside a bar tonight by two men who rode up on a motorbike - one of whom was quickly surrounded and beaten by bystanders.
Surveillance video (scroll down that page to see it) shows one of the men walking up behind Ortiz as he sat on a patio and shooting him point blank.
Ortiz was rushed to a local hospital and the man beaten by the crowd is under arrest.
A second man sitting with Ortiz, a Dominican TV host, was shot in the leg, CDN 37 reports.
Dionisio Soldevila, a reporter in Santo Domingo, reports that when Ortiz was brought into the emergency room, he told a doctor, "please don't let me die - I'm a good man."
Jose Monegro, director of El Dia newspaper, reports police say the shooting was not part of a robbery, "but does not offer further details because the investigation is ongoing."