LAHORE  - Infuriated over the decision of extending bail thrice, six brothers of a murdered man threw alleged killed off the three-storey court building on Saturday.

Police sources said that the injured, Shahbaz,  was rushed to hospital, where his condition was reported to be critical. Police have arrested the attackers and registered a case.

Reportedly, Shahbaz killed Amanat Ali over old enmity a couple of weeks ago. The Green Town police registered a case against Shahbaz.

Police sources said that additional-district and session judge Javed Iqbal Wraich had granted the pre-arrest bail to the accused thrice till October 3. Later, the court twice extended the bail that infuriated the attackers, according to the sources. However, police have launched an investigation.