Days before the US launched airstrikes on Tikrit in late March, VICE News traveled to the front lines of the northern Iraqi city, where Iraqi government forces and volunteer militiamen are continuing to battle the so-called Islamic State militant group. The presence of the volunteer militiamen Hashd al Shaabi, also known as the Popular Mobilization Forces, has raised fears among civilians of retributive attacks. VICE News spoke to refugees from Tikrit who were detained while attempting to flee the fighting, some of whom accused Hashd al Shaabi of carrying out abductions, forced conscription, and looting. Watch “Under Siege in Ramadi” - http://bit.ly/1O8T9MO Watch "Leading the Fight Against the Islamic State: The Battle for Iraq (Dispatch 10)” - http://bit.ly/1EEnJH7 Read "Forensic Teams Exhume Tikrit Mass Graves Suspected to Hold Bodies of 1,700 Iraqi Soldiers” - http://bit.ly/1Flm3Te Subscribe to VICE News here: http://bit.ly/Subscribe-to-VICE-News Check out VICE News for more: http://vicenews.com Follow VICE News here: Facebook: https://www.facebook.com/vicenews Twitter: https://twitter.com/vicenews Tumblr: http://vicenews.tumblr.com/ Instagram: http://instagram.com/vicenews More videos from the VICE network: https://www.fb.com/vicevideos