Security has been tightened in Karachi and other cities on Monday amid the prevailing law and order situation, with authorities placing containers, closing major routes and issuing traffic advisories.

Several major roads in Karachi were sealed with containers, according to the Traffic Police Karachi.

Officials said the PIDC-MT Khan Bridge has been closed, while PIDC Road from MT Khan Road has also been shut for traffic.

Containers have additionally been placed on MT Khan Road in the Sultanabad area.

The Mai Kolachi Road Railway Gate has been closed for general traffic, and the Mai Kolachi Bypass from Boat Basin has also been sealed.

Traffic authorities have advised commuters to use alternative routes until further notice.

Islamabad Red Zone traffic advisory

In Islamabad, only Margalla Road and Marriott Hotel routes will remain open for entry into the Red Zone, while all other entry points will stay closed.

People coming from Club Road have been advised to use Seventh Avenue and Margalla Road, while those travelling from Bhara Kahu should take Srinagar Highway, Seventh Avenue and Margalla Road via Kashmir Chowk.

Road closures in Lahore

In Lahore, several roads leading to the American Consulate have been closed amid possible protests.

Barricades have been placed around Shimla Hill, with law enforcement personnel deployed as a precautionary measure.