A group of pilgrims were waiting to travel to the border town of Taftan when the assailants arrived at the office on Saryab Road and opened fire, Express 24/7 correspondent Muhammad Kazim reported.
The dead include two Uzbeks and one Iranian national, senior police official Hamid Shakeel told Reuters.
The transport company runs buses from Quetta to Taftan, a city that borders Iran, he said.
The injured have been injured to Bolan Medical Complex. Two of the injured are reported to be in serious condition.
Officials said the attack could be an incident of sectarian violence.
"The attackers came on motorcycle and opened fire on the pilgrims. All seven Shia pilgrims were killed on the spot," Farid Breach, a senior police officer, told AFP.
"It was a sectarian attack. The Shia pilgrims were the target."
There was no immediate claim of responsibility for the incident, which was confirmed by local intelligence officials.
A heavy contingent of police has been deployed in the area to control the law and order situation.
The attack was the latest violence in the province of Baluchistan, which is beset by deadly sectarian conflict, a separatist insurgency and Taliban militant activity.
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Bloody butchers. This country was supposed to be a safe haven for Muslims.I bet India is far better than us right now..Muslims there are protected.
@all who commented and later comment, I have seen this happening in Pak against minorities, but for sure, it is not backed by any government, rather someone, who used attack against minorities as tool to destabilize pakistan. Besides, the education given in madarassas in Pak is not islamic rather it is just basic education which does nothing more than adding ignorant mullahs who have no clue what is Islam rather they are vulnerable to fall in the hands of those who want to use them against Pak
shias need to take help from iran and all countries who will want to protect us or else someday we'll all be slaves of terrorism shias unite with other groups who have been targetted for just being not sunni.
And yet we Pakistanis continue to think our country was created as a safe haven for Muslims. Where is the safety? Why are Muslims killed every day in Pakistan for being Shia, Sufi, Deoband, etc.?
We are loosing Balochistan fast..Where is government writ???