The national siren alarm system for early warning of the population in case of emergencies will be tested on April 1 in the following towns: Bourgas, Varna, Kurdjali, Montana, Pazardjik, Pleven, Plovdiv, Rousse, Smolyan, and Sofia, the Interior Ministry said Tuesday.

The new national signals for alert and end of alert will be sounded, accompanied by recorded voice instructions. The testing will start at 1 p.m. and end at about 1.12 p.m.

The purpose of the test is to check the technical state of the system and teach the public to recognize the signals.

(BTA)