Major General Ejaz Chaudhry, head of the paramilitary Pakistan Rangers in southern Sindh province, was removed from his post on the orders of the apex court, a military spokesman told the media.
Reports said the transfer was made after the government sent a letter to the army's general headquarters with the SC's order for action against Chaudhry.
In a related development, Sindh police chief Fayyaz Leghari was also removed from his post by the establishment division, Geo News channel quoted its sources as saying.
The SC had on Friday ordered the transfer of the two top officials within three days. Attorney General Anwar-ul-Haq, the government'' top law officer, on Monday said the apex court's order would be implemented.
Haq said the court's verdict in the case cannot be challenged. "A review petition in a suo motu case cannot be filed on technical grounds," he said. "However, Chaudhry and Leghari can file a review petition in their personal capacity. But technically, the suo motu generates no party so the government is not a party," he added.
The Sindh government too dropped plans to seek a review of the apex court's order for the transfer of the two officials. Haq had advised the government to immediately remove the two officials in line with the SC's orders.
The apex court had issued the order after taking suo motu notice of the shooting and killing of Sarfraz Shah, 18, by Pakistan Rangers personnel in the Benazir Bhutto Park in Karachi on June 8.
The court said the two officials should be removed from their posts as they could influence investigations. The six Pakistan Rangers personnel and a civilian accused in Shah's killing were remanded to police custody till June 15 by an anti-terrorism court in Karachi.