According to the British Pakistani Christian Association (BPCA), four members of a Christian family were travelling to celebrate Easter with family in Quetta when two men on a motorbike opened fire on a rickshaw the family was on.
Four died and one girl is in critical condition. Quetta Police have already listed the attack as "an act of terrorism". It's been reported that terror group Islamic State has claimed responsibility.
Since 2007 terror groups have fought to impose a strict interpretation of Islamic law in Pakistan.
The Christian charity said the country was on high alert at the time and authorities provided enhanced security measures to many churches during the Easter period.
Wilson Chowdhry, chairman of BCPA said the charity will provide assistance to the injured girl and her family.
"It is heart-breaking to think that this poor child, if she survives, will have lost her immediate family," he said.
"Christians face a horrid time in Pakistan their lives are under constant threat from extremist terrorist groups and people in their community face severe prejudices that can lead to blasphemy charges."
He urged the government of Pakistan to renew efforts to protect Christians and other minorities through changes in law and improvements to the educational system.
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