Sindh Home Department said that Bilawal could be attacked by outlawed terrorist group Jundullah at any given time.
Bilawal is due to address a rally on October 18 at Mazar-e-Quaid which will also mark the seventh anniversary of the day former prime minister Benazir Bhutto returned to Pakistan and a bomb blast on her caravan near Karsaz left more that 200 people dead.
Preparations for the jalsa are fully underway and strict security measures are enforced for Bilawal's protection.
A copy of the letter issued by the Sindh Home Department can be viewed here:
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ