Shafaq News/ Four members of al-Hashd al-Shaabi (Popular Mobilization Forces-PMF) have been injured in a blast from an explosive device in Saladin, an official statement said on Sunday.

The statement said that the injured troops were on a mission in the Saladin Island when a roadside bomb targeted their vehicle.

Earlier today, a joint force from the PMF's 31st and 51st brigade, the anti-narcotics department, and a force from the Iraqi army carried out a large-scale campaign in Saladin's Baiji.

The operation uncovered a network of tunnels used by ISIS militants as hideouts and a number of explosive devices, according to the statement.