Lawyers have boycotted courts across Pakistan in protest at President Musharraf’s suspension of the country’s top judge for alleged misuse of office.
In Lahore, more than 20 lawyers were injured in clashes with police. Hundreds of lawyers wearing black suits rallied in other cities.
They say the removal of Chief Justice Iftikhar Mohammed Chaudhry is unlawful.
The judge is a controversial figure noted for his firm line on government misdeeds and human rights abuses.
Witnesses said the demonstration was one of the largest ever by High Court lawyers in Lahore.
They were marching down a main road when police used batons to try and break up the procession. More than 20 lawyers were injured although none of the injuries appeared life-threatening.
Rallies attended by hundreds of black-suited lawyers were also held in the capital, Islamabad, and in other cities including Karachi and Quetta.
The Bar Association says the court shutdown is total.