Iraqi security forces press on after Diyala liberation from IS After liberating the Diyala province from the Islamic State jihadist group in January, Iraqi security forces were still pressing on on Wednesday to secure the rest of the area. Backed by Shiite militias, they've regained significant ground from IS in Diyala and Salaheddin provinces north of Baghdad, but much of the country's west is still in IS hands. IMAGES AND SOUNDBITES