 In other news, the British government's advisor on political violence has called for an investigation into the intimidation of candidates during the recent general election campaign. Lord Walney said he believed there was a concerted campaign by extremists. The leading Islamist party in Tunisia, Ennahda, said its secretary-general has been detained by police. It was not immediately clear why Ajmi Lurimi was taken into custody, but there has been a recent wave of arrests of opponents of the hardline president, Qais Syed.