Tunisia says suicide bomber carried out bus attack claimed by Islamic State

Tunisian forensics police inspect a Tunisian presidential guard bus at the scene of a suicide bomb attack in Tunis, Tunisia November 25, 2015. REUTERS/Zoubeir Souissi

TUNIS (Reuters) - Tunisian authorities said on Wednesday a suicide bomber wearing a vest packed with plastic explosive blew up a presidential guard bus a day earlier, killing at least 12 troops in an attack claimed by Islamic State militants.

Tuesday's explosion on a main boulevard in the capital drove home the vulnerability of Tunisia to Islamist militancy, following assaults on a seaside tourist hotel in June and the Bardo Museum in Tunis in March also claimed by Islamic State.