ANKARA, Turkey — A New York City woman who went missing while vacationing alone in Istanbul was found dead on Saturday, and police were questioning 11 people in connection with the case, Turkey's state-run news agency said.

Sarai Sierra, a 33-year-old mother of two, was last heard from on Jan. 21, the day she was to fly home. Her disappearance attracted a lot of interest in Turkey, where the disappearance of tourists is rare, and Istanbul police had set up a special unit to find her.

The state-run Anadolu Agency said the body of a woman was discovered Saturday evening near the remnants of ancient city walls and that police later identified it as Sierra's.

The agency said she was found with a head wound and a blanket near her body. She was wearing jeans, a jumper and a jacket, and still had her earrings and a bracelet.

Police reached by The Associated Press refused to comment on the case.

Sierra, whose children are 9 and 11, had left for Istanbul on Jan. 7 to explore her photography hobby and made a side trip to Amsterdam, Netherlands, and Munich, Germany. She had originally planned to travel with a friend, but ended up traveling alone when her friend canceled.

She was in regular contact with friends and relatives, and was last in touch with her family on Jan. 21, the day she was due back in New York. She told them she would visit Galata Bridge, which spans Istanbul's Golden Horn waterway, to take photos.

The body was found not far from the bridge and near a major road that runs alongside the sea of Marmara. Here tourists often photograph dozens of tankers waiting to access the Bosporus strait.