KARACHI: Interior Minister Chaudhry Nisar Ali Khan said the government is sending a formal reference against Altaf Hussain to UK’s government for his hate speeches and inciting the party workers to violence. Talking to media persons in Karachi on Wednesday afternoon, he said we all are on the same page regarding Karachi’s security. The minister said security of the media houses will be ensured. He said Karachi will not be made hostage on the call of one person. He expressed sympathy and solidarity with the media on the issue of attack on newsmen and media houses.