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.