German Chancellor, Angela Merkel, urged Ethiopia on Tuesday to open up its politics and ensure police do not use heavy-handed tactics against protesters, after more than a year of unrest that rights groups say has led to about 500 deaths.

Merkel, who spoke at a news conference with Prime Minister Hailemariam Desalegn, arrived in Ethiopia after a fresh flare-up near the capital of the clashes that have cast a shadow over a nation with one of Africa’s fastest-growing economies.

The violence prompted the government to declare a nationwide state of emergency on Sunday. It says the death toll cited by rights groups is exaggerated and blames the wave of violence on “armed gangs” backed by foreigners.

Western states, which are among the biggest donors to what is still a poor nation, want their companies to win deals in Ethiopia but have become increasingly concerned by the government’s authoritarian approach to development.

“I made the case that you should have open talks with people who have problems,” Merkel told Hailemariam, adding that police should respond proportionately to protests.

Last week, protesters ransacked or burned about a dozen mostly foreign-owned factories, flower farms and other sites, accusing the government of building on seized land and stifling opposition.

Opponents blamed police for provoking a stampede at a festival in Oromiya that killed at least 55 people on Oct. 2.

“In a democracy there always needs to be an opposition that has a voice – in the best case in parliament,” Merkel said, during the visit which a German diplomat said included a meeting with members of civil society groups and opposition politicians.