Pripiat is a city very close to Chernobyl in Ukraine. (Ukraine is a nation in Eastern Europe) It is in Northern Ukraine near the border of Belarus.
In 1986 a nuclear reactor in a nuclear power plant in Chernobyl exploded, causing a complete evacuation of Pripiat. Some died, only because it exploded at 1 o'clock in the morning, local time. The United Nations then launched a project in Pripiat to help the people devastated by the disaster.