Israeli troops searching for three Israeli teenagers missing in the West Bank have clashed with Palestinians, detaining scores for questioning.
The army says 150 Palestinians, including leading Hamas members, have so far been arrested.
Palestinian medics say 19-year-old Ahmad Arafat was shot dead during clashes near Ramallah, which erupted after soldier conducted house-to-house searches, the BBC reports.
The students, one of whom also holds a United States passport, went missing on 12 June near an Israeli settlement in the West Bank on their way back from lessons.
Israel says an "intensive operation" is under way to find the two 16-year-olds - Naftali Frenkel, Gilad Shaar - and 19-year-old Eyal Yifrach.
Israel's Prime Minister Benjamin Netanyahu has accused Hamas of abducting them, though Hamas denies this.
"Those who carried out the kidnapping of our youngsters are Hamas people," Israeli Prime Minister Benjamin Netanyahu said on Sunday.
Hamas spokesman Sami Abu Zuhri called Mr Netanyahu's statements "silly" and said the arrests were "aimed at breaking the will of the Hamas movement in the West Bank".
Palestinian officials have said they are co-operating with the search. Security sources told the AFP news agency that the man shot had been released from prison one week ago.