The Campaign for Nuclear Disarmament is deeply concerned by reports of a missile explosion in Poland and is appalled that lives have been lost. These most recent developments demand clarity and restraint. This latest tragic episode in the ongoing catastrophic war in Ukraine should not, and must not, result in an escalated military response. This is especially important given the heightened nuclear threat. We call on the United Nations and the Organization for Security and Co-operation in Europe (OSCE) to clarify the facts of what took place, and we reiterate our calls for an urgent and peaceful resoution to this conflict.