The next R&D Dinner is on Thursday, May 29, at Hacienda del Sol Guest Ranch Resort, 5501 N. Hacienda Del Sol Rd.

according to Tucson Police Department. As of about 3 p.m., TPD says the stretch of River between Campbell Avenue and Hacienda Del Sol Road is closed for an investigation of the collision.

Held each year on the first Saturday in December at the AVA Amphitheater at Casino Del Sol, this festival has become a Tucson tradition and marks the beginning of the holiday season.