Syrian activists Hadi al-Abdallah and Khaled al-Issa were injured in a bomb explosion outside the house they live in Aleppo.
The two activists were transferred to a hospital for treatment, but reports said that one of them is in critical condition.
Al-Abdallah and al-Issa had survived an airstrike a few days ago in the city of Aleppo, where they were slightly wounded.