President Asif Ali Zardari and Muttahida Qaumi Movement (MQM) chief Altaf Hussain held an important meeting at Churchill Hotel in London on Sunday. During the meeting, both the leaders discussed countrys security situation in general and of Karachi in particular. On the occasion, Altaf Hussain expressed his partys reservations regarding some police officers of Sindh following violence in Karachi, a private TV channel, quoting sources close to the meeting, said. Talking to newsmen after the meeting, Altaf Hussain said Talibanisation is a threat to Pakistan and its a conspiracy to break up the country. We have to rise above party politics and join hands to meet this challenge, he added. He said there was a consensus in the meeting that militancy will be elimiated at every cost. He said law-enforcement agencies are working to crush Talibanisation. He regretted that Taliban had not surrendered their arms after the implementation of Nizam-e-Adl in Swat Valley. He said situation in Balochistan is very critical. We have to demonstrate unity to help our Balochi brethren. Responding to a question, Altaf said, Nawaz Sharif should also be taken on board. I respect Nawaz Sharifs reservations but the country at the moment needs unity and the PML-N Chief should support the government." According to sources, CCPO Karachi Waseem Ahmed has also arrived in London. Sensing the gravity of the challenges the country is currently confronted with, President Zardari and Altaf Hussain renewed their commitment to jointly take the country out of the crisis. The President also assured the MQM leader that the Taliban elements would not enter particularly Sindh province as the government is concentrating with full force on controlling the militancy. The President apprised the MQM leader about his recently concluded three-day visit to Libya. During the meeting President Zardari and Altaf Hussain also discussed power-sharing formula between PPP and MQM in Sindh. The two leaders agreed to thrash out differences between the two parties to reach a consensus point for the sake of peace in Karachi and the entire province. During his 48-hour stay in Britain, Zardari is expected to meet British Foreign Secretary David Miliband and other top government officials. His next destination is Washington where he will meet his US counterpart Barack Obama and other senior officials of the US administration. According to the channel, the Zardari-Altaf meeting took place in a hotel where Federal Minister for Interior Rehman Malik and members of MQM Rabita Committee were also present. Earlier, talking to the TV channel, MQM MNA Haider Abbas Rizvi said that the MQM chief would discuss the current regional and national issues with the president who has reached London in the next leg of his foreign tour.