Further turmoil in Pakistan

Imran Khan, the politician and former cricketer, is surrounded by university students in Lahore as he appears in public for the first time since slipping the police net around his home last week. Khan was arrested by police after he emerged from hiding to join a rally against President Musharraf Photograph: Aamir Qureshi/AFP

Imran Khan joins a rally against Musharraf Photograph: Aamir Qureshi/AFP

Students of Punjab University shout slogans to show solidarity with Imran Khan, who was detained after he appeared at the first major student demonstration against Musharraf Photograph: Rahat Dar/EPA

Students of Punjab University shout slogans to show solidarity with Imran Khan Photograph: Rahat Dar/EPA

President Musharraf gives an interview to Associated Press in Rawalpindi. He said that he expects to step down as army chief by end-November and begin a new presidential term as a civilian Photograph: B.K. Bangash/AP

Police prepare for protests in Lahore Photograph: Warrick Page/Getty

Police are deployed around Punjab University in preparation for a rally Photograph: Warrick Page/Getty

Activists from Pakistan's civil society shout anti-Musharraf slogans as they hold placards during a protest in Islamabad Photograph: Asif Hassan/AFP

An opposition supporter chants slogans against President Musharraf Photograph: Wally Santana/AP

Self-chained Pakistani journalists shout anti-government slogans during a protest in Quetta Photograph: Benaras Khan/AFP

A riot policeman observes the participants of a protest Photograph: Naeem Ul Haq/EPA

A supporter of opposition leader Benazir Bhutto hurls back a tear gas shell fired by police during a clash Photograph: Fareed Khan/AP

Police officers detain a supporter of Benazir Bhutto during a clash in Karachi Photograph: Fareed Khan/AP

Supporters of Benazir Bhutto burn tyres during a protest Photograph: Nadeem Khawer/EPA