Arsonists early Tuesday attacked a hall used as a Muslim place of worship in the Athens district of Kallithea, endangering tenants.
Unidentified persons broke the glass front of the hall and doused it with flammable liquid, to which they set fire.
The fire did not spread because people who were sleeping in the hall at nights were woken up by the noise and quickly extinguished the fire, which caused minor material damage.

Attica security police were investigating the incident.