It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Witnesses say police have sealed off the building and the surrounding area.
A consulate official quoted by the Spanish news agency Efe said one or two people had been taken captive.
The official was quoted as saying the intruders had hit an employee on the head upon entering the building at 0800 local time (0700 GMT).