Two Indian citizens have been arrested for allegedly attempting to smuggle $2 million worth of diamonds from Zimbabwe's Marange diamond fields into Surat, the Voice of America reports.

The two men were reportedly apprehended in possession of over 48,000 carats of rough diamonds for which they were unable to produce the requisite Kimberley Process certification. According to authorities, the men are believed to have smuggled the diamonds into India via Kenya.

The VoA reported Zimbabwe's Deputy Mines and Mining Development Minister Gift Chimanikire saying that although law enforcement agencies were patrolling the country's diamond fields, large areas remained open and smuggling was a problem.

Zimbabwe has come under continued criticism by diamond industry activists and human rights groups for abuses perpetrated by security forces in its diamond fields, which were taken over by the government in 2006.

Activist Farai Maguwu said that there was a "lack of political will" to prevent diamond smuggling in Zimbabwe and said that the stones were coming from the companies licensed by the government to mine diamonds. Maguwu said that as long as there were no institutions in Zimbabwe that could guarantee transparency and accountability, efforts to prevent smuggling would "come to nothing."