Multiple attacks in Iraq’s northern city of Tikrit left 12 people dead on Saturday, and at least 23 others wounded. Police say militants killed four policemen at a checkpoint before continuing further and detonating a car bomb at another checkpoint in the city, killing eight and injuring 23. Tikrit was the second city to be taken over by the Islamic State in 2014 and the first to be recaptured by Iraqi forces. Since its liberation, it has mostly been free of the violence caused by the terrorist group in other cities. There was no immediate claim of responsibility for Saturday’s attacks, but IS is known for attacks on checkpoints and police personnel.