Shehzad Akber, former advisor to PM Imran Khan, claimed that his brother was abducted by the security forces. Akber, currently in UK, has stated that the military establishment is forcing him to become an informant against Imran Khan, and that the security forces have abducted his brother to coerce him.
https://www.middleeasteye.net/news/pakistan-urged-release-pro-imran-khan-lawyer-brother