The services of the UPS facility in the Californian city of San Bernardino were shut down Saturday as the police were investigating a suspicious package bearing the address of the assailants in the shooting earlier this week, police said. UPS driver had recognized the address of the perpetrators of the shooting on the package, Police Chief Jarrod Burguan said. "Call at UPS is an abundance of caution. Package with delivery address to suspect res in Redlands. Isolating package to be safe... Item was safe, posed no threat," Burguan said on his Twitter page. On Wednesday, a shooting at Inland Regional Center in San Bernardino, California (about 60 miles east of Los Angeles) took the lives of 14 people, injuring over 20 others. Police identified the shooters as a US-born man of Pakistani origin Syed Rizwan Farook and his wife Tashfeen Malik, a Pakistani national who was in the United States on a K1 (fiancée) visa. The couple was killed in a shootout with police hours after the Wednesday attack.