- 6 updates
The BBC was the latest media company to be targeted by the Syrian Electronic Army, which says it is "supporting the Syrian people against #FSA (Free Syrian Army) terrorism".
Others targeted in the past include the Agence France-Presse news agency, whose @AFPphoto account was taken over last month and images purporting to be from the warzone in Syria were posted.
The group has previously claimed credit for hacking the Twitter and Facebook accounts of Sky News Arabia, Al-Jazeera Mobile, German broadcaster German Deutsche Welle, France 24 and Israeli newspaper Haaretz.
A number of tweets posted by the @bbcweather Twitter account relating to Syria and the Middle East have since been deleted.
A group calling itself the Syrian Electronic Army is claiming responsibility for hack.
The BBC says it is "actively working to resolve" the apparent hacking of a number of accounts by a group claiming to be the Syrian Electronic Army.
The @BBCArabicOnline, @bbcradioulster and @bbcweather accounts all posted tweets relating to Syria and the Middle East.
The BBC Arabic account on Twitter also appears to have been hacked by the Syrian Electronic Army, a cyber group that supports Syrian President Bashar al-Assad.