JERUSALEM (AP) — Israel says it has banned a Palestinian militant turned peace activist from attending the Jerusalem premier of a documentary in which she appears.

The Shin Bet security agency said that Shifa al-Qudsi was barred from entering Israel from the West Bank for "security reasons."

In 2002, Al-Qudsi was preparing to carry out a suicide bombing when Israeli troops arrested her. She spent six years in prison, and after her release, got involved with "Combatants for Peace" — a group that seeks to end violence between Israelis and Palestinians.

Al-Qudsi is one of the activists featured in the documentary "Disturbing the Peace," which premiered at the Jerusalem Film Festival Thursday.

Al-Qudsi said she didn't understand the decision. "Since I got out of prison, I have been calling for peace," she said.