A huge explosion has ripped through the Mexico City headquarters of the state-owned oil giant Pemex, killing 25 people and injuring more than 100.<br /><br />The mid-afternoon blast shattered the towers lower floors sparking panic as employees fled the building and debris rained down into the streets.<br /><br />The cause is unknown, but unconfirmed reports suggest a gas boiler exploded.<br /><br />...<br />http://www.euronews.net/
