RALEIGH — A federal and state drug investigation led to the arrest Thursday of a Beaufort County man and a conspiracy charge involving the highest felony state law provides for cocaine trafficking.

Alcohol Law Enforcement agents arrested Donnie Ray Cox Jr., 39, of Belhaven, at Triangle Town Center about 4 p.m. and charged him with conspiring with a man named Carlos Harris to possess and transport “400 grams or more” of cocaine, a Class D felony.

Agents declined to discuss details of the case, saying that the investigation that led them to Cox is continuing.

Cox, who also is known as Donnie Ray Blount and other aliases, has a record of arrests for drug possession and has served several prison terms.

In 1992, he pleaded guilty in Beaufort County to selling and delivering cocaine, according to a report attached to his arrest warrant.

He was charged in 1996 with possessing drugs with the intent to sell and distribute, then convicted in 1997 of possessing drugs in Washington County.

In 2001, he was convicted in Beaufort County of possessing drugs with intent to sell them.

In Texas, he was charged with possessing between 10 and 50 pounds of marijuana in 2009 and with possession of between four and 200 grams of cocaine in 2011, the report said.

Cox’s bail has been set at $2 million.