CONCORD — A Massachusetts man convicted of conspiracy to distribute fentanyl is scheduled for sentencing in August in federal court, the U.S. Attorney’s office said Monday.

A jury found Santo Benito Lara, 46, of Lawrence, Mass., guilty Friday after a four-day trial, U.S. Attorney Scott W. Murray said in a release Monday.

The Drug Enforcement Administration started investigating Lara about a year ago after receiving information about a conspiracy to sell fentanyl to a customer in Salem, according to the release. Lara and another individual sold fentanyl on multiple occasions between May and September to an unnamed individual who was cooperating with the DEA, according to the release.

“I am grateful for the jury’s verdict in this case,” Murray said in the release. “This prosecution highlights ongoing cooperative efforts by law enforcement in New Hampshire and Massachusetts to identify and prosecute those responsible for the interstate distribution of fentanyl and other lethal drugs.”

Lara is scheduled to be sentenced Aug. 27 in U.S. District Court.