A leading advocate for media freedom warns that the climate for journalists in Europe is deteriorating as governments react to political crises with restrictions that include physical harassment, bans on freedom of movement and limits on freedom of expression.

Dunja Mijatovic, media freedom representative for the Organization for Security and Cooperation in Europe, on Tuesday cited attempts by Ukraine and the Baltic states to keep out journalists with strong pro-Russian views, and anti-terror laws in Western Europe that she said limit freedom of expression.

Mijatovic last week demanded that Hungary stop threatening journalists after Hungarian police beat and harassed reporters covering Europe's migration crisis.