Officials at Matsqui Institution in the Fraser Valley say they have seized four packages containing contraband worth nearly $160,000.
A statement from the medium-security federal prison says the items -- including crystal methamphetamine, THC butter and cellphones -- were seized last Thursday.
The statement doesn't indicate what tipped officers to search for the goods, instead saying the items were discovered as a result of "vigilance" by staff.
A full search is underway and inmates at the institution in Abbotsford are now under lockdown until further notice.
