Pakistan’s former prime minister Imran Khan says police have “surrounded” his house and his arrest is imminent.

Mr Khan, 70, was arrested last Tuesday in a corruption case which sparked countrywide violence.

He tweeted: “Probably my last tweet before my next arrest,” adding that police have “surrounded” his house in the eastern city of Lahore.

Thousands of his supporters attacked and set on fire scores of government and public buildings, including the army’s headquarters and at least eight people died in violent protests across the country.

He was released on bail last Friday, and on Wednesday the Islamabad High Court granted a bail extension until 31 May, his lawyer Faisal Chaudhry said.

He was released from custody after Pakistan’s Supreme Court ruled that his arrest was illegal. The court ruled that he cannot be arrested anytime in the next few weeks.

Mr Khan has been faced with multiple corruption charges in Pakistani courts since he was ousted as a prime minister in a no-confidence vote last April.