The premises of the Swiss Foundation for Mine Action were hit by a Russian missile strike on Wednesday morning in Kharkiv, in eastern Ukraine.
The extent of the damage is still being assessed, and the Swiss NGO says it hopes to have operations running again as soon as possible.
No NGO employees were injured or killed, but vehicles and equipment have also been damaged in the attack.
Pro-Israel march called off
Do you need to get a fresh covid vaccine?
Switzerland is full of data centres
Burgleries rise again
More people 'information deprived'
Military court sentences army recruit following on-duty sexual assault
