Original sentence: On 26 April the Russian delegation to the OPCW held a press conference in The Hague where they presented several witnesses from the Douma incident, flown in from Syria.On 7 April 2018, a chemical attack in the Syrian city of Douma reportedly killed at least 70 people.On-site medics said a mixture of chlorine gas and sarin was used in the attack
Edited sentence: Also the boy spoke.On 26 April the Russian delegation to the OPCW held a press conference in The Hague where they presented several witnesses from the Douma incident.On 7 April 2018, an alleged chemical attack in the Syrian city of Douma reportedly killed at least 70 people.One claimed to be the father of Diab, the boy visible in the original video footage scene of the incident in the hospital outpatient department.Some on-site medics said a mixture of chlorine gas and sarin was used in the attack, while Russia has said that other medical staff and an alleged victim claimed that the incident had been staged by the White Helmets