It looks like the airport in running as normal, but the car-park is quite damaged (I just saw some pictures on TV). The explosion happened in the car park by the new Terminal 4 (used almost exclusively by Iberia).
More details here:
http://news.bbc.co.uk/2/hi/middle_east/6219019.stm
UPDATE: It seems like the airport is not running as normal after all. Terminal 4 (Iberia flights) has not been running this morning. There were some reports that indicated it would start running again at 14:00, but this still unclear. The problem seemed to be that since people were evacuated from Terminal 4 to T1 and T2. These two terminals are now so crowded, and people are having problems getting back to T4 to catch their flights. But from the looks of it, during the afternoon/night things should be back to normal. There are about 20 wounded and 1 person missing.
Ivar
More details here:
http://news.bbc.co.uk/2/hi/middle_east/6219019.stm
UPDATE: It seems like the airport is not running as normal after all. Terminal 4 (Iberia flights) has not been running this morning. There were some reports that indicated it would start running again at 14:00, but this still unclear. The problem seemed to be that since people were evacuated from Terminal 4 to T1 and T2. These two terminals are now so crowded, and people are having problems getting back to T4 to catch their flights. But from the looks of it, during the afternoon/night things should be back to normal. There are about 20 wounded and 1 person missing.
Ivar