A man who set off an explosive device at a courthouse in Montenegro’s capital Podgorica was killed in the blast on Friday and five others were injured, police said.

“He activated the high-powered explosive device upon entering the court building, and died instantly,” said Srdjan Korac, a senior police officer in the capital.

“There are also five injured who have been admitted to the hospital centre. It shouldn’t be serious injuries,” he added.

Violent incidents are relatively rare in the tiny Adriatic nation famed for its picturesque beaches, framed by nearby mountains that have long been a draw for tourists.

Last August, the country was rocked by the killing of 10 people after a gunman went on a rampage in the central city of Cetinje.

With an unemployment rate of some 18 percent and an average monthly salary of under 750 euros ($800), Montenegro counts on tourism to boost its revenues.

Organised crime and corruption have remained two major issues plaguing the country which authorities have pledged to tackle under pressure from the European Union.

Mass shootings and bombings, however, have been rare.