The United States on Thursday added the suspected jihadist bombmaker said to have supplied the gangs behind the deadly attacks in Paris and Brussels to its terror blacklist. 

French and Belgian authorities believe a militant known as Ahmad Alkhald provided suicide vests and explosives expertise before the November 13, 2015 attacks on a Paris concert, bars and football crowd that left 130 dead. 

He is thought to have fled to Syria, but remained in contact with a gang that later carried out the March 22, 2016 bombings at Brussels airport and a metro station that killed 32 people.