At least 43 people have been killed in political violence in Pakistan’s southern port city of Karachi during the last 18 days

At least 43 people have been killed in political violence in Pakistan's southern port city of Karachi during the last 18 days, interior minister Rehman Malik told a press conference Monday as he announced the arrest of 11 suspects.

"There is a conspiracy going on against Pakistan to destabilize it, but I can't share the evidence at the moment," Malik added. "Criminal elements could be almost present in all political parties and action will be taken across the board against them."
  
The unrest comes amid heightened tensions between the Muttahida Qaumi Movement (MQM), which represents Urdu-speakers originally from India, and the Awami National Party (ANP), backed by Pashto-speakers from Pakistan's northwest. The MQM and the ANP are partners in the Pakistan People's Party-led coalition that rules the southern province of Sindh, of which Karachi is the capital.
  
Sindh Chief minister Syed Qaim Ali Shah confirmed the number of victims and said they included members of different political groups.