<p>"At about 8.15 am, while opening the letter, it exploded, injuring two people," a spokesman for police in the canton of Solothurn told AFP.<br /><br />He said the blast occurred at the offices of Swissnuclear, the nuclear energy offshoot of the Swiss power industry association.<br /><br />It groups major power generating firms in Switzerland, according to the association's website.<br /><br />The spokesman did not give the identity of the victims or details on the gravity of their injuries.</p>
<p>"At about 8.15 am, while opening the letter, it exploded, injuring two people," a spokesman for police in the canton of Solothurn told AFP.<br /><br />He said the blast occurred at the offices of Swissnuclear, the nuclear energy offshoot of the Swiss power industry association.<br /><br />It groups major power generating firms in Switzerland, according to the association's website.<br /><br />The spokesman did not give the identity of the victims or details on the gravity of their injuries.</p>