Tuesday's shooting in the Ein el-Hilweh camp comes three days after an official from Palestinian President Mahmoud Abbas' Fatah party — Talal Baladneh, who was also known as Talal the Jordanian — was ambushed and killed in a hail of gunfire near the camp.
The Palestinian officials say one of killed men was a member of the extremist Jund al-Sham group while the other belonged to Fatah. The wounded included two civilians and a Jund al-Sham member. The officials spoke on condition of anonymity because they were not authorized to speak to reporters.
Shootings are common in Ein el-Hilweh, Lebanon's largest Palestinian refugee camp and a haven for militants and fugitives.