Turkey ? A bomb hidden in a garbage can exploded near an Istanbul bus stop Friday, killing a street vendor and injuring 13 people, officials said.

A Kurdish militant group claimed responsibility, calling the attack retaliation for the killings of Kurds in southeastern Turkey.

A 3-year-old boy was shot and killed during renewed clashes pitting angry Kurds against Turkish police and paramilitary officers in the southeast, officials said, increasing to seven the death toll in the worst street violence in a decade in the overwhelmingly Kurdish area.

The death followed reports that a 6-year-old and two young men wounded during earlier clashes died overnight in hospitals.

The military killed seven Kurdish rebels, including two women, during fighting in a mountainous area in the southeast, the Anatolia news agency reported.