Members of the Iraqi security forces and Shiite fighters celebrate after taking control of Saadiya in Diyala province from Islamist State militants.

Baghdad Operations Command arrested on Saturday an aide of the so called ‘Vali’ of the eastern province of Diyala, Iraqi federal police said in a statement.

“The federal police was able to arrest an aid of the so called Vali of Diyala belonging to ISIS terrorist gangs in Al-Ghazaliya region,” Al-Sumaria News quoted the command as saying in a statement.

The police found flashes and other digital storage devices which contained sermons and lectures on how to “conduct terrorist operations” and “promote sectarianism.”

It also discovered two stores of arms and material used to manufacture explosives in Al-Basateen and Al-Furat neighborhoods.

Ten explosives were dismantled and “terrorist” suspects were arrested in the operation but no numbers were available.

The statement comes after ISIS militants shot down an Iraqi military helicopter, killing the two pilots on board. The incident raised fresh concerns about the extremists’ ability to attack aircraft amid ongoing U.S.-led coalition airstrikes.

[wpResize]