Philippine President Corazon Aquino vowed Monday not to give in to terrorism after unidentified attackers lobbed four bombs from a car at the home of her justice secretary, Franklin Drilon.

Drilon's home and five nearby houses in the fashionable Manila district of Greenhills were damaged in the pre-dawn attack, but the minister and his family escaped unhurt.Aquino said the military was taking all precautions to prevent a fresh coup attempt after published reports from military intelligence saying that army rebels could launch a new insurrection.

In a broadcast ceremony, the head of the Philippine Marine Corps, Col. Ponciano Millena, told troops who took part in last December's putsch not to allow themselves again "to be fooled by fools."

Aquino told a news conference that bomb attacks were a fact of life around the world, and they must not be allowed to undermine democracy.

"We who believe in democracy, and we who believe in peaceful means should not be coerced into surrendering to these terrorists," Aquino declared.