A medical transport jet transporting a child who had just completed treatment for a life-threatening condition, her mother and four others crashed into a Philadelphia neighbourhood shortly after takeoff Friday evening, exploding in a fireball that engulfed several homes.

China is building a new military command centre near Beijing that is 10 times the size of the Pentagon, US intelligence officials have said.

Hamas has handed American-Israeli hostage Keith Siegel, 65, over to the Red Cross, the third hostage to be released Saturday as part of a ceasefire deal with Israel.

The German parliament has narrowly rejected an opposition-sponsored bill calling for tougher rules on migration that risked becoming the first draft legislation to pass thanks to a far-right party.