17:21 EU chief says 'at this point no indications' Spain blackout is cyberattack
17:01 'Impossible' to say when Portugal electricity will be restored: grid operator
16:52 Massive blackout disrupts flights in Spain, Portugal: air traffic organisation
16:28 Spanish PM calls emergency meeting over blackout: government
16:15 Spain grid operator urges citizens not to 'speculate' on cause of blackout