Explosion in Tunisia kills 12 on bus carrying presidential guard

An explosion has struck a bus carrying members of Tunisia’s presidential guard, killing at least 12 people and wounding 16 others in what the interior ministry called a “terrorist act”.

The blast on a tree-lined avenue in the heart of Tunis is a new blow to a country that has struggled against Islamic extremist violence.

Radical gunmen staged two attacks earlier this year that killed 60 people, devastated the tourism industry and rattled this young democracy.