TUNISIA (WSLS 10) — At least 12 people are confirmed dead after an explosion ripped through a bus full of presidential guards Tuesday.
According to NBC News, one source says the explosion was was probably carried out by a bomber detonating his explosives in the vehicle.
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According to an  interior ministry statement At least 12 guards were killed and 17 wounded.
Tunisia has had free elections and is operating under a new constitution and a broad political consensus that has allowed secular and Islamist parties to overcome a crisis that threatens to overturn their young democracy.
But several thousand Tunisians have also left to fight in Syria, Iraq and Libya with Islamic State and other militant groups, and some have threatened to carry out attacks at home.
The army has also been fighting against another Islamist militant group in the mountains near the Algerian border. Militants have hit checkpoints and patrols in rural areas in the past.