A Turkish official says a Syrian opposition commander has died in a bomb attack in the Turkish city of Antakya, near the border with Syria.

Ercan Topaca, governor for Turkey's Hatay province, told Turkey's state-run Anadolu Agency that Jamil Raadoun died of his wounds in a hospital Wednesday, hours after a bomb placed beneath his car exploded.

Topaca said the 44-year old Raadoun was a commander of the Suqour al-Ghab brigade, a group affiliated with the opposition Free Syrian Army.

He said an investigation has been launched but added it appeared to be the result of "conflict between Syrian opposition groups."

The governor said Raadoun was the target of a similar attack in April, but the bomb was discovered before it could explode.