Cambodia opposition National Rescue Party (CNRP) President Sam Rainsy. Pic: AP.

PHNOM PENH, Cambodia (AP) — Cambodian authorities say they won’t permit the opposition to hold a gathering this Sunday at a park in the capital, retaining a ban on demonstrations imposed three months ago after political violence.

City Hall spokesman Long Dimanche said Thursday that Phnom Penh authorities turned down the opposition Cambodia National Rescue Party’s request to use Freedom Park because it was still part of a court investigation over the violence. He said the gathering could be held at party headquarters.

The opposition is challenging the results of a general election last July that they allege was rigged by Prime Minister Hun Sen’s ruling Cambodian People’s Party. Protests peaked late last year demanding that Hun Sen step down and call new elections.