SAN FRANCISCO, July 15 (Xinhua) -- The police headquarters of Sunnyvale, a city south of San Francisco, in northern California, was evacuated Saturday for hours as three old grenades, apparently from World War II era, were dropped off in its lobby.
Captain Jeff Hunter, of the Sunnyvale Department of Public Safety (DPS), told a press briefing that the three rusty rocket-propelled grenades were identified by bomb squad of the Santa Clara County Sheriff's Office to be inert, as there were no explosive materials inside and therefore not dangerous.
While they were brought in a box by two people at around noon local time with the intent to have the items disposed of, the police headquarters were evacuated.
The box had been found in the garage of a parent of the two people - a man and a woman, according to Hunter, who did not identify the two or clarify their parent's residence. There would be no charges against them.
The DPS, which resumed operation later in the day, posted several messages on Twitter social media network, including a picture of the grenades.
Sunnyvale, the second largest city in Santa Clara County and 39th in California, is the seventh most populous city in the San Francisco Bay Area with an estimated population of more than 150,000 as of 2016. It is home to a number of technology companies and employees from a lot more companies in the area known as Silicon Valley.
