After Karachi, the two parties came face to face in London today.
According to details, PTI activists voiced slogans against Altaf Hussain outside MQM International Secretariat, London, prompting the other side to raise slogans against Imran Khan and Tehreek-i-Insaf.
During the episode, charged-up activists hurled bottles and shoes on each other, which also hit the journalists present over there.
However, the British police upon witnessing mounting tension dispersed the crowd.
The PTI has called for a protest outside the residence of the British PM at 10 Downing Street.