Best photos of the day: a German tiger and a Tehran funeral

A selection of photo highlights from around the world, including the funeral of the former Iranian president Akbar Hashemi Rafsanjani, and a four month-old tiger

Fort Lauderdale, Antartica and Istanbul – the 20 photographs of the week

The aftermath from the nightclub attack in Istanbul, a massive rift at an ice shelf in Antarctica, the fragile ceasefire in Syria – the news of the week captured by the world’s best photojournalists