The prospect of EU membership has for years been the main driver of reform in the Balkans after a decade of war and upheaval in the 1990s.
A cat named Pooh has been given a new lease of life in Bulgaria, becoming the country's first cat with a pair of prosthetic hind legs.
Radev, who is the country's fifth democratically elected president, was sworn in at a ceremony in parliament together with Vice-president Iliana Yotova.
Bulgarian President Rosen Plevneliev: ‘We should continue writing history of strong Bulgaria in strong...
The yearning for past glory or the wish for the strong hand of a leader, who would bring prosperity do not offer a solution. The solution lies in strong institutions, which will guarantee justice and rules for everyone.
A derailed tanker train exploded Saturday and decimated a village in northeastern Bulgaria, killing seven people and leaving least 29 injured, many with severe burns, the Interior Ministry said.
Bulgarian Prime Minister Boiko Borisov announced his resignation after exit polls showed his party losing badly in Sunday's runoff presidential election.
Rumen Radev, the candidate of Bulgaria's opposition Socialist party, narrowly won the first round of the presidential election in Bulgaria with 24.8-26.7 percent of the vote.
The new European Border and Coast Guard Agency's equipment and teams were presented Thursday at the Kapitan Andreevo checkpoint on the Bulgarian-Turkish border.