From Washington,this is VOA News.

Four men have been arrested for alleged witness tampering in the war crimes trial of former Congolese vice president Jean-Pierre Bemba.

The International Criminal Court announced the arrests Sunday, saying the suspects bribed witnesses to give false testimony and presented evidence to the court that they knew to be false or forged.

The four include members of Bemba's legal team, as well as a defense witness and a leader of Bemba's party.

Bemba faces charges of murder, rape and pillaging for actions his rebel group allegedly committed in the Central African Republic in 2002 and 2003.

A power vacuum and the total absence of law and order in Central African Republic could be luring a terror group called Boko Haram.

VOA reporter Hannah McNeish

Edmond Mulet, assistant secretary-general for peacekeeping operations at the United Nations in New York, said the complete absence of a working government in CAR is similar to northern Mali in 2012 -- where Islamist groups affiliated with al-Qaida stepped into the political vacuum and took over.

Mulet told VOA he thinks the first ones to arrive in the CAR in may be the Nigerian terrorist group Boko Haram - who are already present in neighboring northern Cameroon.  

“I don't think about al-Shabab, but certainly Boko Haram we have some indications that there is some kind of a presence here,"

CAR has long been a favorite hideout of brutal warlord Joseph Kony, whose Lord's Resistance Army has terrorized communities in nearby Uganda, South Sudan and the Democratic Republic of Congo for decades.

The U.N. has warned that “the seeds of genocide” are being sown in CAR. But with so few watching the forest-covered country, it will be hard to know when, or if, terror groups take root, or mass violence begins.

VOA News Hannah McNeish from BANGUI.