Mrs Arroyo said the threat had been contained

"I am happy to report that we have dismantled the sabotage efforts," Mrs Arroyo said. "I strongly believe that law and order has returned."

Charges have been filed against a small number of people over the alleged plot, and police want others charged for previous acts of rebellion.

Before her announcement, two small blasts hit Manila, but hurt nobody.

Lifting the state of emergency the president said: "It is important for our political opponents and the opportunists to stop this nuisance to our economy and embarrassment to the Philippines caused by these useless charades.

"I will never tolerate this kind of adventurism. No matter how many times, I will act with steadfastness and determination each time our enemies undermine our nation and the economy," she added in a nationally televised address.

Played up

The BBC's correspondent in Manila, Sarah Toms, says some analysts believe the government could have played up threats of a coup to ward off potential plotters and win public sympathy.

But the week of emergency rule will do little to improve a fractious political system or bring unity to the rest of military, analysts say.

Civil liberties groups, the media and opposition condemned the state of emergency, saying people's freedoms were being eroded.

Left-wing legislator Teodoro Casino has been holed up with four colleagues in the House of Representatives to avoid arrest, having been charged with fomenting rebellion.

He called the end of the emergency "cosmetic".

"We still cannot go out of Congress, we still have a lousy president, and the military and police are still after 'the enemies of the state'," he said.

The two explosions in Manila occurred near a police post in the business district of the capital on Friday, police said.

The blasts cracked paving stones but did no further damage, and business went on as usual, police said.

Police have so far charged two people with rebellion over the conspiracy, and seven others over a mutiny by soldiers in 2003.