Two Pakistani security personnel were injured in rockets shelling from the Afghan side of the border on Tuesday, state radio reported.

Quoting officials, radio Pakistan reported that three rockets were fired from the Afghanistan side on a security forces' check post in the Bajaur tribal region.

The injured were moved to a military medical facility in the area.

Pakistan and Afghanistan, who have over 2,000 km common border, have accused each other of cross-border shelling.

Omar Said Khan, a senior official in Bajaur, confirmed the attack and said militants may have fired rockets from the Afghan side.

Pakistani forces fired in retaliation on the suspects' sites, he told media persons in the region.

Officials said that some Pakistani militants who have fled to Afghanistan after the military operations now operate from Afghanistan and launch attacks on Pakistani border posts.

Local officials in Bajaur said that Tuesday's rocket fire was the second of its kind in two days in Bajaur from Afghanistan's Kunar province.

On Monday, two minors were injured from Afghan firing in an attack which raised serious concern among local tribal elders, who demanded an immediate halt to such activities.

The Pakistani government has raised the issue with the Afghan government several times, but the latter has repeatedly denied these allegations.

Earlier on Sept. 26, six mortar shells fired from Afghanistan killed two people in the Ghulam Khan area of North Waziristan tribal area.