By UN News
NEW YORK (IDN) — Countries which have not yet ratified the Comprehensive Nuclear-Test-Ban Treaty (CTBT) are urged by UN Secretary-General António Guterres to do so without delay.
The UN chief made the appeal in his message for the International Day Against Nuclear Tests, observed on Sunday, 29 August.
The date marks the 30th anniversary of the closure of the Semipalatinsk nuclear test site in Kazakhstan, the largest of its kind in the former Soviet Union, where more than 450 nuclear devices were exploded over four decades.