Annual test of Swiss emergency sirens a success

Over 5,000 stationary sirens sounded throughout Switzerland on Wednesday. As with last year's siren test, around 99% of the sirens worked perfectly, according to the Swiss government. The sirens sounded between 1.30 pm and 4.30 pm, depending on the location. The sirens sounded the general alert at 1.30 pm, a regular ascending and descending wailing tone lasting one minute. The water alert was also tested from 2.00 pm until 4.30 pm in areas close to dams. The signal consists of twelve low continuous...