on political violence and incidents of electoral misconduct. Opposition political gatherings were disrupted by bikers. On 24 April 2013, a press photographer was assaulted by bikers spotted wearing 1Malaysia shirts at a gathering by DAP in Bukit Gelugor. The state BN chief has denied any connection with the incident. Additionally, there have been numerous reports of vandalism against vehicles used by opposition politicians and their supporters. In one incident, two cars belonging to a PKR candidate's daughter were damaged following an arson attempt at her residence in Klang. A number of sexually explicit videos allegedly portraying opposition figures have surfaced in cyberspace, notably on blogs hostile towards the Pakatan Rakyat. The secretary-general of PAS, Datuk Mustafa Ali, who was implicated in one of the videos has denied his involvement, with his lawyer calling the videos "a pure slander campaign by UMNO". In turn, UMNO has sued Mustafa and his lawyer over those allegedly libelous statements. Anwar Ibrahim has also sued UMNO blogger and election candidate Wan Muhammad Azri Wan Deris for trying to implicate him in one of the explicit videos. A number of anti-Christian billboards have appeared during the election campaign period, bringing up the ire of the Christian Federation of Malaysia, who have called for the removal of such billboards. Users of several online news and media websites, such as independent news site Malaysiakini have claimed that several Malaysian internet service providers (ISPs) were throttling their access speeds to the sites. Several independent websites critical of the government, such as Radio Free Malaysia and Sarawak Report have experienced DDoS attacks. Malaysiakini have claimed that their Twitter account was hacked and their videos inaccessible through local ISPs. There have been a number of reports by the opposition alleging that the incumbent government is flying in thousands of foreigners to parts of Malaysia to influence the outcome of the vote in favour of BN. BN in turn has denied any wrongdoing, saying these flights were sponsored by "friends of BN". Bersih has called the provision of flights for voters an election offence. The opposition said that many of their supporters and agents will be monitoring the situation and making citizen's arrests of foreigners who vote. Voting Postal voting for overseas Malaysians were conducted in various Malaysian representative offices around the world. According to the Election Commission (EC), 70% of 8,756 people who were eligible to vote overseas turned up to