According to superstition, bald heads contain gold and, used in rituals, can create wealth. File picture: Independent Media

Maputo - Police in Mozambique on Wednesday issued a warning to bald men, saying they may be targeted by witch doctors believing their heads contain gold.

The warning comes after the suspected killings of at least three bald men since March in central Zambezia province, police spokesperson Inacio Dina told dpa.

The police said it suspects traditional healers or witch doctors, who use body parts to make "medicines" or in superstitious rituals, to be behind the killings.

According to local superstition, bald heads contain gold and, used in rituals, can create wealth.

"Bald people may be pursued because they are thought to have some kind of power, and that if this power can be transferred to other people, it will enrich them," said Dina.

The police have made four arrests in connection with the killings, the spokesperson said.