Violence flares in Israel, Gaza, sources say By Michael Schwartz and Talal Abu Rahma, CNN December 24, 2013 -- Updated 1455 GMT (2255 HKT) Israeli Prime Minister Benjamin Netanyahu at his Jerusalem office on December 22, 2013. NEW: Girl in Gaza killed in Israeli airstrike, Hamas security sources say Israeli was working on border fence when he was shot, Israeli military says Hamas' military wing claims Israeli was a soldier; Israel says deceased was civilian Israeli prime minister's office calls it a "very severe incident" (CNN) -- [Breaking news update, 9:53 a.m. A 4-year-old girl was killed and three other people were injured in an Israeli airstrike on an al Qassam Brigades camp in Gaza on Tuesday, Hamas security sources said. All four were from one family living in a house near the camp, the sources said. [Earlier version, posted at 8:48 a.m. Gaza sniper kills Israeli near border, Israeli military says (CNN) -- A sniper in Gaza fatally shot an Israeli citizen near the border fence between Gaza and Israel on Tuesday, an Israeli military representative said. The Israeli was performing maintenance work on the fence when the shooting happened along the northern Gaza border, the military said. Israeli Prime Minister Benjamin Netanyahu's office issued a statement saying it was a "very severe incident, and we will not let it go unanswered." "Our policy until now has been to act beforehand and to respond in force, and this is how we will act regarding this incident as well," Netanyahu's office said. The al Qassam Brigades -- the military wing of Hamas, which controls Gaza -- claimed on its Twitter account that the Israeli was a soldier. The Israeli military, however, said the deceased was a civilian. CNN's Saad Abedine contributed to this report. December 24, 2013 -- Updated 0319 GMT (1119 HKT) San Fernando has been dubbed "Christmas Capital of the Philippines" for its Giant Lantern Festival. Here's a glimpse into its celebrations. December 24, 2013 -- Updated 0910 GMT (1710 HKT) Edward Snowden, the National Security Agency leaker, has given a wide-ranging interview to The Washington Post, saying "I already won." December 24, 2013 -- Updated 1256 GMT (2056 HKT) Alan Turing, a British code-breaker during World War II, has received a royal pardon nearly 60 years after he committed suicide. December 24, 2013 -- Updated 0937 GMT (1737 HKT) It's holiday time, and families are recording priceless memories. But can greed still be good for us? December 24, 2013 -- Updated 0209 GMT (1009 HKT) December 24, 2013 -- Updated 1236 GMT (2036 HKT) Something was different in 2013. This year, it was individuals who created the most unexpected or dramatic events. December 24, 2013 -- Updated 0431 GMT (1231 HKT) December 24, 2013 -- Updated 1132 GMT (1932 HKT)