Palestinian has been killed overnight during an Israeli military operation in the Qalandiya refugee camp near Ramallah in the West Bank, medical and security sources say.

The 21-year-old man was killed when troops entered the camp to make an arrest, prompting clashes with residents, sources said on Tuesday.

The Israeli army confirmed that its special forces had launched a raid on the camp and that there had been clashes.

Another Palestinian was arrested.

Witnesses said residents of Qalandiya refugee camp threw stones at the Israeli soldiers and the man killed was watching from the roof of his home when he was shot.

The Israeli military later released a statement saying it was "investigating the incident".

According to the UN's OCHA, Israeli forces have killed at least 47 Palestinians in occupied West Bank since the beginning of 2014.

PHOTO CAPTION

Palestinian map locating Qalandiya

Al-Jazeera