Six Palestinians were killed in Syria on Wednesday, a local group said, with some of the bodies showing signs of torture. The coordinating committee of Yarmouk refugee camp said that four Palestinians were killed at a security checkpoint near the city of Aleppo, reported the Palestinian news agency Maan. Their bodies were found on the street and showed indications of an execution style killing, according to the group. Two other Palestinians were shot dead in their Damascus homes, it said. Palestinian Authority Ambassador to Syria Mahmoud al-Khalidi said that the PLO would not intervene in the Syrian conflict. “Efforts are still there to maintain non-interference in the internal affairs of Syria,” he said, according to Maan. Last week, at least 18 Palestinians were killed and their bodies displayed publicly in Damascus, PLO officials in Yarmouk said.