June 19 (UPI) -- At least 18 people were killed and 33 injured overnight in a wave of Israeli strikes on southern Lebanon , the country's health ministry said. The Israeli military said four of its troops were killed and five injured. The bulk of Israeli fire was concentrated on Nabatieh district, 15 miles southeast of Sidon, with Lebanese state media describing the bombardment as some of the heaviest since cross border fighting flared on March 2, shortly after the United States and Israel