It has been announced that London airspace has been closed due to a technical problem.<br /><br /> Authorities say the order will stay in force until 8pm Central European Time on Friday while the problem is fixed.<br /><br /> It is unclear how many flights or airports are affected by the closure.<br /><br /> Some reports talk about a computer failure or a power outage. <br /><br /> The announcement came from Eurocontrol, the aviation safety agency.
