A man armed with a shotgun opened fire in a tourist area of Istanbul early Wednesday, wounding two people, local media reported.
The man shouted "Allah Akbar" (God is great) before shooting, Turkey's NTV television quoted witnesses as saying.
The incident happened in Sultanahmet, the heart of historic old Istanbul, which is visited by thousands of tourists every day.
The man was believed to have got inside the Ottoman palace of Topkapi, one of the city's main tourist attractions, before he opened fire.
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