What happened?
Shortly after 10 am local time on Monday, Israel launched an attack on the facade of Nasser Hospital and the evacuation staircase running on the outside of the building. More specifically, it was the hospital's fourth and top floor that was attacked. The staircase and roof have long been attractive to journalists, as it is one of the few places from which you can get an overview of Khan Yunis. A video camera broadcasts live from there to global news agencies, but was interrupted by the attack.
The first attack occurred with a drone, according to BBC. About five minutes later, when rescue personnel and journalists were helping the victims, the second attack came - with a rocket or artillery fire from a tank, the information is conflicting.
What happened inside the hospital?
Nasser Hospital is one of the few healthcare facilities that still has some capacity in war-torn southern Gaza. A video clip recorded immediately after the first attack shows the hospital's spokesperson, Doctor Mohammad Saqer, holding up what appears to be a blood-stained doctor's coat. Then the second detonation occurs, the camera shakes and Saqer and people around him run for cover.
A healthcare worker tells BBC that she was in the intensive care unit to check on a patient who was on a ventilator when she heard a "very loud" explosion.
A few seconds later, hospital staff covered in dust and blood came in. They were extremely stressed and informed us that we had to evacuate immediately.
What do we know about the victims?
At least 20 people were killed and another 50 injured, according to the employers and contractors of the killed journalists, WHO and the Hamas-controlled health department in Gaza.
Among the dead are journalists Hussam al-Masri and Mohammed Salama, who worked for the news agency Reuters and Al Jazeera, respectively, as well as Ahmed Abu Aziz, Moaz Abu Taha and Mariam Abu Dagga. Dagga worked mainly for the news agency AP.
Among the dead are also healthcare staff, patients and employees of Gaza's civil defense, according to authorities.
One of Swedish Radio's employees, Swedish citizen Baraa Lafi, was injured in the attack.
Israel's military claims that six "terrorists" were killed in the double attack.
What does Israel say?
Prime Minister Benjamin Netanyahu has called the double attack "a tragic accident". The country's military has confirmed the attack and claims that the involved Golan Brigade discovered "a camera placed by Hamas" on the hospital grounds and which was used to "direct terrorist acts" against soldiers. No evidence was presented and no explanation was given as to why Israel attacked twice.
In Israeli media there are reports that only the first drone attack was approved by the military leadership.
And Hamas?
Bassem Naim, who is part of Hamas' politburo, claims in a statement to AP that the terrorist-stamped group did not have any camera at the hospital.
Nasser Hospital also rejects the allegations of a Hamas-controlled camera there.
What does the outside world say?
The attack has been condemned by a long list of countries, news agencies, the UN and other organizations. International law experts believe that the attack may constitute a war crime.
