PHNOM PENH, Cambodia (AP) — Cambodian opposition leader Kem Sokha was granted a royal pardon on Monday from a 27-year prison sentence for treason, a month after an appeals court affirmed his conviction and punishment.Hun Sen, the Senate president acting as head of state in the absence of King Norodom Sihamoni, issued the pardon freeing Kem Sokha from house arrest. Sihamoni is in China on an extended stay for medical treatment.Prime Minister Hun Manet, in a statement posted on the Telegram social media platform, described the pardon as a step in strengthening national unity. Kem Sokha made no immediate public comment. His lawyers said the action did not lift a ban on him taking part in politics or leaving the country for five years after his sentence was over. The decision is unlikely to greatly affect the political climate in Cambodia, with other opposition figures in exile and where political and social activists continue to face restrictions on freedom of speech and movement.

“Hun Sen’s decision to pardon Kem Sokha after more than eight years in arbitrary detention partially reverses a grievous injustice, but it is deplorable that Sokha remains barred from participating in politics or leaving the country,” Elaine Pearson, the regional director for Human Rights Watch, said a statement.