The police also barred PTI lawyers and others from moving past the barrier, leading to a standoff which lasted for about 30 minutes.
Journalists were stopped from taking photographs as police took away their phones.
The police finally allowed Bushra Bibi to see the PTI chief, but the lawyers were denied permission.
“Bushra Bibi has got the permission but the legal team is being asked to meet next week. Perhaps it is because of [my] previous press conference. The legal team has every right to meet [Imrna Khan] because it needs to receive
instructions about pleading the case. This is our right,” said Khan’s lawyer Naeem Haider Panjutha.
Panjutha met Imran Khan last week and then held a press conference to communicate the PTI chief’s message to his workers.
Bushra Bibi is the first family member to meet Khan after his arrest.
She travelled with Khan’s legal team from Lahore to Islamabad where she appeared before the court and then to Attock, arriving in the northwestern Punjab city located 400 kilometres from Lahore at around noon.
Imran Khan was arrested from his Zaman Park residence in Lahore on Saturday, August 6. He was taken to Attock prison immediately after the arrest and is being held in a separate part of the jail away from other prisoners.