Supporters of Nawaz Sharif have clashed with police in Pakistan's Punjab province as they tried to reach the airport where the former prime minister and his daughter Maryam were arrested on their return to the country in a corruption case, prompting police to lob tear gas shells and use batons that left at least 50 people injured.

The country's anti-graft body - National Accountability Bureau - arrested Sharif, 68, and Maryam, 48 in the Avenfield properties case upon their arrival on Friday. They were later taken to Islamabad and sent to Adiala jail in Rawalpindi. Both Sharif, the supremo of the Pakistan Muslim League — Nawaz, and Maryam have been sentenced to 10 and seven years in jail respectively.