In the ensuing clashes, protesters burned tires, blocked roads and threw stones at Palestinian security officers, who responded with tear-gas and stun grenades.
The clashes erupted after the PA security forces refused to release Khaled al-Ararawi, whose nephew, Majdi, was killed during last month’s large-scale Israeli military operation in the camp.
Abbas had invited the leaders of the factions to the meeting in response to the Israeli military operation in the Jenin Refugee camp earlier this month.