NAIROBI (Reuters) - Two Kenyan opposition politicians were prevented from leaving the country on Monday when immigration authorities confiscated their passports, hours after a court ordered the travel documents to be returned, an opposition official said.

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Salim Lone, an adviser to opposition leader Raila Odinga, said James Orengo and Jimi Wanjigi had planned to travel to the funeral of Zimbabwean opposition leader Morgan Tsvangirai from Nairobi’s international airport but had missed their flight.

The High Court had earlier ordered that the two men and five other opposition members should have their passports returned after they were suspended by the Interior Ministry following Odinga’s symbolic “swearing in” as president in late January.

A case filed by the seven National Super Alliance Coalition (NASA) members challenging the suspension is due to be heard later this month.

In a statement late on Monday, Lone said Orengo and Wanjigi had got another court order for their passports’ return but that immigration officials were still holding onto them.

“The officers refused to carry out the court order and the passports were not returned, making the two NASA leaders miss the flight,” the statement said. “Mr Orengo and Mr. Wanjigi are still at the airport trying to retrieve their unlawfully confiscated passports.”

Immigration officials were not immediately reachable to comment.

Interior ministry spokesman Mwenda Njoka did not comment on the incident at the airport but said the government “will most likely appeal” the High Court’s order to return the seven opposition members’ passports.

Monday’s incident underlines the deepening rift between President Uhuru Kenyatta’s government and the judiciary, which nullified his initial re-election as president last year and ordered a repeat vote, which Odinga then boycotted.

Odinga justified his “swearing in” by saying he had won the Aug. 8 election that was then invalidated by the Supreme Court.

Odinga had left the country earlier on Monday.

Late last week, the government said it would appeal another court order reversing the deportation of another opposition member, lawyer Miguna Miguna, who is now in Canada.

The government said the ruling was “not in the best interest of the country”.