Explosion in Turkey's Bursa caused by female suicide bomber: sources

An explosion in the northwestern Turkish city of Bursa on Wednesday was caused by a female suicide bomber, a security source and a senior government official said, citing photographic evidence.

Seven people were wounded in the blast, the security source said. Turkey has been hit by a series of suicide bombings this year, including two in Istanbul blamed on Islamic State and two in the capital Ankara claimed by Kurdish militants, Reuters reports.