TRIPOLI  - Leading Libyan dissident Mansour al-Kikhia, who disappeared 19 years ago under the Kadhafi regime, is to be buried Monday, weeks after his body was found in an intelligence services morgue, his brother said.Libya's new authorities, who announced only last week that the body had been discovered, held a funeral ceremony on Sunday to pay tribute to Kikhia.Kikhia will be buried in his native city of Benghazi, cradle of last year's revolt that ousted now slain dictator Moamer Kadhafi, said the dissident's brother Mahmud al-Kikhia.He was "abducted in Cairo in 1993 by the former regime," and his body was discovered in mid-October in a morgue inside a Tripoli villa that once served as a headquarters for Kadhafi's infamous intelligence services, he said.Mahmud added that DNA analysis of Kikhia's body matched those of his brothers and sons.Kadhafi intelligence chief Abdullah al-Senussi, who is currently imprisoned by the country's new authorities, acknowledged the dissident's abduction and indicated the location of the body, the brother said.On the eve of his burial, Libya's top brass attended a funeral ceremony to pay tribute to Kikhia.National assembly head Mohammed Megaryef and Prime Minister Ali Zeidan, a comrade-in-arms of Kikhia during years of exile and opposition to Kadhafi, attended the ceremony alongside other officials and diplomats posted in Tripoli.Megaryef and Zeidan hailed Kikhia as a "martyr for liberty" and spoke of his accomplishments during years of activism against Kadhafi's regime."The values and principles of justice for which strove are now being implemented thanks to the February 17 (2011) revolution," that ousted Kadhafi, said Megaryef.Zeidan recalled that Kikhia had founded the Libyan human rights league and was abducted in Cairo in 1993 during a meeting of the watchdog.The foreign ministry issued a statement saying: "The tyrannical regime (of Kadhafi) abducted the dissident Mansour Rashid al-Kikhia, killed him, hid his body and did not bury it, proving it was more afraid of him dead than alive." Speakers at the ceremony also urged officials to bring to justice those responsible for Kikhia's abduction, both in Libya and in Egypt.After Kikhia's kidnapping, the Libyan intelligence services were singled out and the possible involvement of the Egyptian regime was discussed, but in the absence of hard evidence, his disappearance remained a mystery.Mohammed al-Mufti, Kikhia's brother-in-law, who helped identify the body, said he "recognised Mansour at first glance, though the long stay in the morgue changed his facial features."Mufti added that Kikhia was imprisoned for four years before his death, and was sick before his imprisonment.For his part, Mahmud al-Kikhia rejected the idea of his brother having died of natural causes, as there were traces of stab wounds on the chest of the deceased, he said, adding that a medical report will be prepared to explain the causes of death.According to Mahmud, former Egyptian president Hosni Mubarak and his close associates were "implicated" in Kikhia's abduction.Kikhia was a former foreign minister under Kadhafi and previously an ambassador posted to Paris, Algeria and the United Nations but in 1980 he joined opposition ranks against the former dictator.During the 1990s, Kadhafi launched a campaign to kill opponents in various Arab and Western countries, qualifying his detractors as "stray dogs."