BRUKIN, West Bank: Arsonists left a burning tire at the entrance of a Palestinian mosque in the northern West Bank early Wednesday, residents and Israeli police said, the latest in a string of recent assaults on Muslim and Christian holy sites.

The attack blackened the mosque’s entrance, where worshippers leave their shoes before entering. No one was seen carrying out the attack in the village of Brukin, but suspicion fell on Jewish settlers, who are thought to have carried out similar acts of vandalism in the past.

“We hope there won’t be more attacks, but we expect there will be. We’ve had continuous problems with the settlers around us,” said the Palestinian mayor, Akrima Samara.

Mahmoud Habbash, a Palestinian Islamic leader, said some 10 mosques were attacked or torched in the past three years in the West Bank. At least one other mosque and a Muslim graveyard were desecrated this year.

Young Jewish extremists have adopted a practice, called “price tag,” of attacking Palestinian targets in retaliation for Israeli government policies they deem too sympathetic to Palestinians. The mosque burnings, in particular, threaten to inflame already poor relations between Jews and Arabs.

Israeli police said they were investigating the incident.

But few complaints about anti-Palestinian violence result in prosecution, according to figures released Wednesday by an Israeli human rights group.

The group, Tel Aviv-based Yesh Din, said military police issued indictments in connection with only 6 percent of all investigated complaints Palestinians made against Israeli forces in the West Bank from 2000 to 2010.

The group said military police investigated 61 percent of the 3,150 complaints that Palestinians filed. The rest were closed without an investigation, Yesh Din said in a report. In response, the Israeli military said it looks into all complaints and that decisions by military authorities could be appealed to the country’s Supreme Court.