Bahrain Live Coverage: Why Did Saudis Pour Cold Water on "Union"?
See also Bahrain Live Coverage: "Union" with Saudi Arabia?
1930 GMT: A march on Monday night rejecting union with Saudi Arabia:
1540 GMT: In another sign of the authorities' intent to crack down on expression in social media, Parliament has been considering legislation "to curb misuse of electronic means of communication as well as punish perpetrators using the platform to incite violence in the Kingdom".
The MPs are considering the formation of a committee with jurisdiction over offences allegedly committed via electronic and social media.