Helicopter crash happened in the province's port city of Gwadar when the helicopter developed a technical problem, killing two Navy officers and a sailor of the Pakistan Navy, The News International newspaper reported.
The attack occurred near the Gwadar police station in Balochistan when the convoy carrying 23 Chinese engineers was passing the police station and an IED blast took place.
Gwadar is one of the focal points of the multi-billion China-Pakistan Economic Corridor (CPEC) with many Chinese workers working at the port. China is investing heavily in Balochistan under the CPEC.