Police in the Philippines are investigating a claim that last
weekend's failed coup attempt included a plot to kill President Gloria Macapagal Arroyo.
Mrs Arroyo is anxious to find out exactly what the plan was
Interior Secretary Jose Lina said the reported assassination plot was the subject of an intelligence report which had yet to be validated.
Mrs Arroyo's administration is anxious to get to the bottom of Sunday's coup attempt, which saw 300 soldiers occupy a shopping complex in Manila for 20 hours, demanding that the president step down.
Mrs Arroyo warned on Thursday that the threat against her government was "far from over", while Armed
Forces Chief of Staff Narciso Abaya added that the risk posed by the renegade troops was "still live".
Attempts are continuing to identify the ringleaders of the mutiny.
More than 300 soldiers are now in detention on charges relating to the coup plot, but others are still unaccounted for.
Local media reported on Friday that about 100 armed men were missing.
Police are also checking reports of unauthorised troop movements in Manila.
Officers set up roadblocks outside the city on Friday, but so far "no busloads of soldiers have been found", army spokesman Lieutenant-Colonel Daniel Lucero told Reuters news agency.
As well as members of the armed forces, the government has accused supporters of former President Joseph Estrada of being involved in the uprising.
State prosecutors have already filed rebellion charges against
Ramon Cardenas, a member of Mr Estrada's cabinet, after police said they found weapons and armbands used by the mutineers inside his house.
Jose Lina, speaking at a congressional hearing about the uprising on Friday, repeated his accusation that opposition senator Gregorio Honasan was involved in the mutiny.
Mr Lina said the government was preparing charges against Mr
Honasan, a former army colonel who led several coup attempts against President Corazon Aquino in the 1980s.
Both Mr Honasan and Mr Estrada - who is currently in detention and on trial for corruption - deny involvement in the weekend's events.