At least six people have been killed including four women, and 14 others have been wounded in the Slovak capital Bratislava by a 15 year-old according to local media reports.
They add that the gunman has committed suicide.
The entire Devinska Nova district, the scene of the shootings, has been sealed off.
Police are refusing to release any more information at the moment.
Gunman kills 6, wounds 14 in Bratislava