Group claims attack on Greek police station

Greek authorities said Wednesday a previously unknown group has claimed responsibility for a gunfire and grenade attack on an Athens police station.

The attack took place during a surge of violence targeting the force after the fatal police shooting of a teenager.

A police statement said a group calling itself Sect of Revolutionaries had claimed that it carried out Tuesday's pre-dawn attack, which caused no injuries.

Police said the claim was found on a computer disk that officers found after an anonymous call to an Athens newspaper. No further information was immediately available.

Three unknown assailants in hoods and helmets opened …