Islamabad, April 1 (UNI) Security agencies have uncovered a plot to assassinate beleaguered Pakistan Prime Minister Imran Khan, leading to his security cover being beefed up, Information Minister Fawad Chaudhry said on Friday. "Following these reports, the PM's security has been strengthened," Chaudhry tweeted. Earlier this week, ruling PTI leader Faisal Vawda also claimed that a conspiracy was being hatched to assassinate the Prime Minister "due to his resistance against foreign conspiracy". Imran Khan has refused to resign despite the opposition claiming that they have the numbers in Parliament to outvote him. UNI GK MR