Security has been placed on high alert around the Karachi Central Jail, with a heavy contingent of police and Rangers deployed in the area, officials said.

Vehicles parked near the facility were removed as part of the heightened security measures amid border clashes with Afghanistan.

Police officials said the steps were taken in view of the current tense situation and to ensure law and order.

Separately, police conducted raids in different areas of Sohrab Goth and Defence Authority Area, detaining more than 25 Afghan nationals allegedly staying in the country illegally.

According to officials, over 20 individuals were arrested in Sohrab Goth and shifted to a police station, while four others were detained in the Defence area.

Authorities said the operations were part of ongoing action against illegal residents.