Two ground launch rockets have been found close to Pakistan's spy agency in the country's capital, Islamabad, security officials say.
Two rockets and a launcher were also found on Thursday
It comes days after the discovery of two other rockets and a rocket launcher near the parliament building.
On Wednesday, an explosive device was detonated in a park close to the home of President Pervez Musharraf in the nearby city of Rawalpindi.
The latest rockets were discovered in a bushy area off a main road.
The headquarters of the Pakistani intelligence services, the ISI, are situated nearby.
A senior intelligence official said the rockets were primed to fire in the direction of the headquarters.
"We have not made any arrest, but the rockets were not different from the ones found near parliament," he told the Associated Press news agency.
But Interior Minister Aftab Ahmed Khan Sherpao said the ISI was not the target.
The rockets found on Thursday were uncovered in a patch of green across the road from the main parliament buildings.
President Pervez Musharraf was in a conference centre about two kilometres away when the discovery was made.
There is speculation that the incidents are aimed at warning President Musharraf's government that its close collaboration with the US and allies in the West will not go unchallenged, says the BBC's Dan Isaacs in Islamabad.