A suicide bomber thought to have crossed recently from Syria killed at least 10 people, most of them German tourists, in Istanbul’s historic heart on Tuesday, in an attack Prime Minister Ahmet Davutoglu blamed on Islamic State.

All of those killed in Sultanahmet square, near the Blue Mosque and Hagia Sophia – major tourist sites in the center of one of the world’s most visited cities – were foreigners, Davutoglu said. A senior Turkish official said nine were German, while Peru’s foreign ministry said a Peruvian man also died.

Deputy Prime Minister Numan Kurtulmus said the bomber was believed to have recently entered Turkey from Syria but was not on Turkey’s watch list of suspected militants. He said earlier that the bomber had been identified from body parts at the scene and was thought to be a Syrian born in 1988. […]