Police say a report of a single-vehicle crash in Beecher Bay led to a pair of arrests and the discovery of an explosive device.
Sooke RCMP officers arrived to East Sooke and Yates roads to find a crashed vehicle and an injured woman believed to be a passenger, but no driver.
Police then learned that there was an explosive device in the area linked to the woman and called the RCMP explosive disposal unit.
No further details about the explosive device were immediately available from RCMP.
Meanwhile, police had also received a report that a security guard had been attacked nearby and a truck was stolen.
An officer patrolling the area spotted the stolen truck down an embankment, RCMP said. The driver, believed to have been the driver in the initial crash, was arrested for charges that included vehicle theft and assault with a weapon.
The woman was also arrested.
Both crashed vehicles were towed and seized for forensic analysis, police said.
East Sooke Road was closed for several hours as police investigated.
Police ask anyone with information to contact Sooke RCMP at 250-642-5141.