The security officials told AFP that those freed did not include a group of Iranian border guards believed to have been kidnapped by jihadists and taken to Pakistan in early February, sparking diplomatic tensions.
"11 foreigners were rescued in a raid in a neighbourhood of Turbat town, some 1,050 kilometres (656 miles) west of Quetta," a security official told AFP.
The raid had been conducted in an attempt to rescue five Iranian border guards who were kidnapped on February 6 from Iran's Sistan-Baluchistan province, officials said.
Baluchistan is known as a gateway to Asia for drug smugglers and sees a frequent influx of foreigners from Iran and elsewhere.
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Diplomatic ties between Iran and Pakistan touched a fresh low last week over fate of the kidnapped border guards, when the Iranian Interior Minister Abdolreza Rahmani-Fazli reportedly threatened Pakistan that Tehran may send forces into Pakistan to free them.
Home to a large Sunni minority and ethnic Baluch people in a predominantly Shiite country, Sistan-Baluchestan province has been the scene of unrest in recent years.