Adiato Djalo Nandigna, an ex- minister in the regime overthrown in a coup on April 12, 2012, has been released after being questioned for 12 hours, according to her family.

Addressing the press in Bissau after her release Friday, Nandigna said she "had not been detained or even constrained" by the security services.

"I was questioned but not detained," she insisted after her release, just hours following her return to Bissau from exile.

Nandigna, who was the second highest official in the deposed regime of Carlos Gomes Junior, said she had come back to attend the eighth congress of PAIGC, the country's biggest political party in which she is the third vice-president.

Kumba Yala, the country's ex-president, was the first to visit Nandigna after she had been detained by the security officers in Bissau.

Following the April 2012 coup, Nandigna took refuge at the European Union offices in Bissau, before fleeing the country into exile in Portugal.