On Monday, Nasser Hospital - the largest in southern Gaza and one of the few still partially operating in the Strip - was hit twice by Israeli strikes. At least 20 people were reportedly killed, including journalists and medical staff. The attack has drawn international condemnation and the United Nations has said there must be justice. On Monday, Israeli Prime Minister Benjamin Netanyahu called it a tragic mishap. On Tuesday, the Israeli military stated the strike targeted a camera positioned by Hamas without providing evidence, adding that further investigation was needed into how the strikes had been authorized. BBC Verify analyzed footage from the attack and its aftermath to piece together the timeline of events and what it reveals. Reha Kansara has more. Verification by Benedict Garman, Sebastian Vandermeersch, Shayan Sardarizadeh, and Sherie Ryder. Graphics by Mesut Ersoz. Produced by Katerina Karelli.