LASHKAR GAH, Afghanistan, May 8 (Xinhua) -- Afghan security forces launched a cleanup operation, leaving five Taliban militants including a divisional commander dead, in the country's southern province of Helmand, the military said Wednesday.

Afghan commandoes launched the operation late Tuesday night, killing five militants and seizing heavy and light arms and ammunition in a vicinity of Musa Qala district of Helmand, Afghan National Army Special Operations Corps said in a statement.

One computer and two communication devices, as well as 50 kg of poppy opium, have also been seized by security forces during the mop-up, the statement said.

Helmand, notorious for poppy growing, is also a known Taliban stronghold.

The Taliban militant group hasn't made comments on the report yet.