Gato_Solo said:Linkage, please... I'm still seeing something different...
Officials say Basque militants from Eta are the main suspects, but the group is said to have denied involvement.
A message purportedly from the Abu Hafs al-Masri Brigades was also sent to a UK-based Arabic newspaper saying it had attacked "America's ally in its war against Islam" on behalf of al-Qaeda.
The ruling Popular Party campaigned on a hardline stance against Eta, but it also defied popular opposition by supporting the US-led war against Iraq - which may have triggered an attack by al-Qaeda.
http://news.bbc.co.uk/1/hi/world/europe/3506352.stm
It isn't official, yet.