Amnesty International says in its annual report that respect for human rights regressed across Europe in 2015, as countries moved to restrict the massive inflow of migrants and put in sweeping anti-terrorism measures.

The rights group's chief Salil Shetty says Wednesday that as the world's richest political bloc, the European Union — with the exception of Germany — had failed migrants.

Shetty also said several countries, including France, Russia and the U.S., are sacrificing human rights and justifying it in the name of fighting terrorism. He called the French government's emergency crackdown, imposed after the deadly Paris attacks three months ago, "increasingly questionable."

In Syria, Shetty said he was skeptical whether the cease-fire negotiated by the U.S. and Russia this week would have any effect on the ground.