At last 11 people have been killed and a further 40 have suffered injuries during an attack on a tented encampment in the south of the Gaza Strip, the Palestinian WAFA news agency reported on Friday, citing hospital doctors. According to the report, tents in al-Mawasi, which lies directly on the Mediterranean coast, were hit in the attack. Many Palestinians have taken refuge in the encampment since the Israel Defense Forces (IDF) began operations in nearby Rafah at the start of May and designated al-Mawasi a safe zone. Asked to comment, the IDF said it had no knowledge of an attack by Israeli …