<br/><br/>Human rights activists in Pakistan today rallied to protest the disappearance of four activists over the past one week and asked the government to take measures to locate them. <br/><br/>Leftist liberals accuse that security agencies or militants might be behind the forced disappearances though nobody has claimed responsibility for the abduction.<br/><br/>Protest rallies were held in Islamabad, Karachi and Lahore, where journalists, civil society supporters and rights activists demanded urgent measures to find the four missing activists.'<br/><br/>The disappearance echoed in the Senate, the upper house of parliament, on Monday, where opposition pressed government to recover the activists. Interior Minister Nisar Ali Khan said that all steps were being taken to recover the missing activists.''<br/><br/>Human Rights Commission of Pakistan and Human Rights Watch expressed serious concern over the disappearance of the activists and asked Pakistan government to locate them.<br/>''''<br/>