Islamabad
Islamabad (; ) is the capital city of Pakistan, and is federally administered as part of the Islamabad Capital Territory. Built as a planned city in the 1960s to replace Karachi as Pakistan's capital, Islamabad is noted for its high standards of living, safety, and abundant greenery.
Targeted killings in Pakistan
Karachi is a cosmopolitan city and consists of many ethnic communities; the city's demographics play an important role in its politics. Ethnic politics have resulted in sporadic violence throughout Karachi's history, often leading to bloody conflicts. Following the independence of Pakistan in 1947, Muslim immigrants from areas constituting modern-day India migrated in large numbers to the Muslim nation of Pakistan and became settled in Karachi, the historical capital of the Sindh province. The early migrants who came and settled are known as Muhajirs, something which was resented by a portion of the province's native Sindhi people and radical Sindhi nationalists. After the breakaway of East Pakistan in 1971 and the formation of Bangladesh, Pakistan accepted a large number of Biharis (known as "Stranded Pakistanis") loyal to the country, trapped in Bangladesh and offered them citizenship. The Bihari migrants assimilated into the diverse Urdu-speaking Muhajir population. Some Bengalis in Pakistan also stayed behind. 
The Pashtuns (Pakhtuns or Pathans), originally from Khyber Pakhtunkhwa, FATA and northern Balochistan, are now the city's second largest ethnic group in Karachi after Muhajirs. With as high as 7 million by some estimates, the city of Karachi in Pakistan has the largest concentration of urban Pakhtun population in the world, including 50,000 registered Afghan refugees in the city. As per current demographic ratio Pashtuns are about 25% of Karachi's population.