The Ministry of Defense (MoD) said the operations were conducted by Afghan National Army (ANA) forces in Marjah and Nawa districts.
According to a statement released by MoD, at least 15 Taliban militants were killed during an operation in nawa district.
The statement further added Afghan National Army (ANA) forces also confiscated some weapons and ammunition during the operation.
In a separate operation in Marjah district, at least one Taliban militant was killed and two others were injured, the statement added.
The Taliban militants group has not commented regarding the report so far.
Helmand is among the volatile provinces in southern Afghanistan where anti-government armed militant groups are actively operating in its various districts and frequently carry out insurgency activities.