The Guinea-Bissau government has demanded for a clear and justified explanation on the attack carried out by captain Pansau Ntchama from Portugal, an official statement released on Sunday said.

"The transitional authorities reserve the right to review our future relations with the Community of Portuguese Speaking Nations (CPLP)," the statement continued.

Fernando Vaz who is the government spokesman, told the press that "Bissau is still investigating the incident."

"We are demanding for explanations only from Portugal since Ntchama was living on her territory in political exile," Vaz said.

He said that Lisbon is obligated to justify why Ntchama, immediately after leaving Portugal, came and attacked a Guinea- Bissau military base in an attempted coup d'etat on October 21.

Ntchama was arrested on Saturday at Bolama in the south-west region of Bissau, together with six of his lieutenants.

In its statement, the transition government warned all diplomatic representations in Bissau that " it will no longer tolerate any attempt to provide security or protection to individuals planing to carry out terrorist actions that threaten national security."

"The transitional government accuses CPLP, but more particularly Portugal and Cape Verde, for practising a policy of terrorism against institutions in the Republic of Guinea-Bissau. This policy is meant to create a climate of political and social instability in order to justify the intervention of an international military force," the government statement indicated.

The Forum of Political Parties which brings together about 20 opposition political parties, said that it will hold Portugal, CPLP and the country's ex-prime minister Carlos Gomes Junior responsible for any negative consequences that might arise from the events of October 21.

"The Forum demands that Portugal gives explanations regarding the circumstances under which Ntchama left her territory to come and launch an attack in Guinea-Bissau yet he was living there in political exile," the parties said in a press statement.