A Tongan pro-democracy MP, Clive Edwards, says the renewal of emergency regulations for parts of the capital Nuku'alofa is unjustified.
At the weekend, Tongan authorities extended the state of emergency powers for parts of the capital for another month.
The regulations provide police wider powers within a designated zone in the city, which lost much of its CBD during an anti-government riot in November 2006.
Mr Edwards says the extension is uncalled for.
"It's unnecessary and it's affecting us badly. We're governed by emergency rules when they're not necessary and these regulations are intended for only a limited period of one month. But here we are running onto the third year of having emergency rule."
Clive Edwards says the regulations should be lifted immediately.
