On 28 June 2017, an arms theft at a military base in Tancos, Portugal was discovered. The stolen weapons reportedly included 1,450 9 mm caliber cartridges, 150 hand grenades, 44 anti-tank grenades, 18 tear gas grenades, 264 units of plastic explosives, and 102 explosive charges. Following an anonymous tip-off, some of the weapons were found in Chamusca on 18 October 2017.