News At Seven-Thirty highlights: Chinese naval vessels set sail for Somalia; Ship owners welcomed China’s anti-piracy mission; Crowds flocked to Food Festival at Wan Chai; HK Airport Services threatening a strike; 8 killed by man dressed in Santa suit; Israeli issued warning to Palestinians; National mourning in Ukraine for explosion victims; 6 people on trial for melamine milk scandal; Tributes for Nobel Prize-winning playwright;TDC have plans to help HK SMEs in mainland; Volunteers gave orphans a truly merry Christmas; Trapped local deer rescued.