In Syria, the Director of Syrian Scientific Research Centre Aziz Asber was killed in a bombing in Hama countryside.
In a statement, Syrian Observatory for Human Rights war monitoring group said rebel group affiliated to Tahrir al-Sham has claimed the responsibility of attack. It includes the group formerly known as Nusra Front, which served as al Qaeda's Syrian branch.
Earlier in April, missile strikes by United States, Britain and France destroyed a Syrian Scientific Research Centre facility in Damascus in response to a suspected poison gas attack.
The Syrian government backed by Russia has denied using chemical weapons.
Source: Radio Pakistan