WASHINGTON (AP) — Federal prosecutors plan to seek a grand jury indictment of President Joe Biden’s son Hunter before the end of the month, according to newly filed court documents.

The filing comes in a gun possession case in which Hunter Biden was accused of having a firearm while being a drug user, though prosecutors did not name which charges they will seek.

He has also been under investigation by federal prosecutors for his business dealings.

U.S. Attorney for Delaware David Weiss, newly named a special counsel in the case, referred to seeking an indictment before Sept. 29 in a status report required by Judge Maryellen Noreika.