Unusual rituals to bring good luck in Ugandan elections in February, led to six cases of child mutilation and murder, says a children charity.

The cases were reported in Ssembabule, Mukono, Buikwe and Mubende districts in central Uganda. All cases were noticed from October to February.

“Child sacrifice cases are common during election time as some people believe blood sacrifices will bring wealth and power,” said Shelin Kasozi of Kyampisi Childcare Ministries (KCM).

Suspects are under custody. The cases are yet to be taken to court.

The children were missing during the election. The cases of children have not been confirmed, says Moses Binoga, coordinator of the anti-trafficking task force at the interior ministry.

Binoga said that some bodies were brutally mutilated with organs ripped apart. Two cases were reported with missing heads, according to Yahoo News.

In 2012 Hanifa Namuyanja (82) was arrested for killing his granddaughter Shamim Nalwoga. He was sentenced to 15-year jail. Police found her body without eyes, tongue and mutilated genitals.

In 2014, nine child and four adult cases of ritual slaughter were reported. While in 2015, there were seven child and six adult cases.

Last year, authorities reported many cases of attacks on albino people in Africa. They were linked to black magic ritual of killing. It was believed to bring luck to political stability, said United Nations.

Last month, Ugandan President Yoweri Museveni extended his 30-year old regime, following the arrest of his leading contender.

He swept more than 60 percent of votes and beat his opposition,Kizza Besigye, who obtained 35 percent vote.

During the win of Museveni, Besigye was under house arrest.

On Friday, Besigye’s supporters criticised the arrest and took to the streets in parts of the capital Kampala.

While US Secretary of State John Kerry urged Museveni to raise concern over Besigye’s arrest.

In a statement, US State Department said: “ (Mr.Kerry) urged President Museveni to rein in the police and security forces, noting that such action calls into question Uganda’s commitment to a transparent and credible election process free from intimidation,” in a report by Independent.