The prime minister of Iraq has urged the Islamic State group to surrender as government troops close in on its last urban stronghold in the country, Mosul.

Haider al-Abadi appeared on state TV wearing combat fatigues and said: "They have no choice. Either they surrender or they die."

Iraqi special forces are now about 1km (0.6 miles) away from Mosul's eastern edge and preparing to enter. Units of the army are meanwhile advancing from the south. Using another name for IS, Mr al-Abadi said: "We will close in on Daesh from all angles and God willing we will cut the snake's head. They will have no way out and no way to escape."

Mr al-Abadi is the commander-in-chief of the Iraqi armed forces. The BBC's Ian Pannell, who is travelling with Counter-Terrorism Service (CTS) troops, says there was some resistance to their advance on Monday. He said IS car bombs targeted the convoy.

When Daesh (a term for IS) entered Mosul, they killed my father because he was a police officer. I got away - they didn't come after me.

My village was besieged for two years and a couple of months. If I had spoken to anyone about being in the police or army, Daesh would have killed me. It happened to many of my close friends. They would go to their homes and Daesh would just take them away. Daesh are just beards. They force you to attend all the prayers at the mosque. If your woman is not wearing a hijab, they will whip you - they have complete control.

Units of the Iraqi military recaptured some villages to the east, north and south of Mosul on Monday, according to the army. It is unclear when the final offensive on Mosul will begin, and resistance from IS in the city has intensified.

About 50,000 Iraqi security forces personnel, Kurdish Peshmerga fighters, Sunni Arab tribesmen and Shia militiamen are involved in the offensive, which began more than two weeks ago, to drive IS militants out of their last major urban stronghold in the country.