Interview: ISIS Advances On Baquba

Iraqi government forces were engaged on Tuesday in heavy clashes with Sunni insurgents who have made major advances in the past week. Parts of the city of Baquba, just 37 miles from Baghdad, were briefly taken over by the rebels. Reports say 44 prisoners were killed during fighting at a police station in the city. The Iraqi government, meanwhile, accused neighboring Saudi Arabia of supporting the insurgents and providing them with financial aid, allegations Riyadh has rejected.

ABC News correspondent Tom Rivers joined us:

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