Columbia University president quits, months after handling of Gaza war protests

Ukraine says advance into Russia 'going well', creates strategic buffer

Hamas to stay out of Gaza truce talks but may meet mediators afterwards

Poland received German request to arrest Nord Stream suspect but he's left country, prosecutors say

Taylor Swift plot: Austria's chancellor urges more message-app monitoring

Israel orders more Gaza evacuations after school shelter attack kills scores

Removal of bodies begins from Brazil plane crash that killed 62

Israeli strike kills nearly 100 in Gaza school refuge, civil defence officials say