Jackknifed semi-truck blocks northbound lanes of Florida's Turnpike in Martin County

A jackknifed semi-truck is blocking both northbound lanes of Florida's Turnpike in Martin County on Friday afternoon.The crash happened shortly before noon near mile marker 125, underneath the SE Bridge Road overpass.Traffic is being directed onto the shoulder while both travel lanes remain blocked. It is unclear whether anyone was injured or if other vehicles were involved in the crash. WPTV has reached out to the Florida Highway Patrol for more details.This story will be updated as more information becomes available and lanes reopen.