Israeli troops fired more than 100 times during an attack in which they killed 15 emergency workers in Gaza, with some shots from as close as 12m (39ft) away, a forensic audio analysis of mobile phone footage commissioned by BBC Verify has found.

Two audio experts examined a 19-minute video authenticated by BBC Verify, showing the incident and the moments leading up to it near Rafah on 23 March.

The findings support a claim made by the Palestinian Red Crescent that the workers were “targeted from a very close range”. On 5 April an Israeli army official said aerial footage showed troops opening fire “from afar”.

The Israel Defense Forces (IDF) declined to comment on the analysis directly when approached by BBC Verify.