At least eight people are killed when fighting breaks out between Palestinian factions in a refugee camp in Lebanon.br br At least 10 people were wounded.br br Local sources said the clashes broke out between fighters from the Brigades of Return, a group originally linked to Palestinian President Mohammad Abbas's Fatah group, and a rival militant organisation.br br It's not immediately clear what triggered the fight.br br Tensions in the camps and in Lebanon as a whole have been been exacerbated by the conflict in neighboring Syria.br br More than a million Syrian refugees have poured into Lebanon , displaced by three years of war.