New York attorney general launches investigation into NRA. Here's everything you need to know.

New York state Attorney General Letitia James announced Saturday that her office has initiated an investigation into the National Rifle Association's finances.

The announcement came amid internal strife at the NRA, which led to the departure of NRA president Oliver North during the organization's annual convention this weekend.

What are the details?

In a statement, James' office confirmed the existence of the investigation, but did not provide additional details.

"The Office of New York State Attorney General Letitia James has launched an investigation related to the National Rifle Association (NRA). As part of this investigation, the Attorney General has issued subpoenas," the spokesperson for James' office said.

The New York Times reported that James' office also sent letters instructing the NRA and affiliated organizations "to preserve relevant financial records." Several businesses connected to the NRA also received the letters.

According to The Times, the investigation is related to the NRA's tax-exempt status. As CNN noted, the investigation comes after Everytown For Gun Safety, a gun control advocacy group, filed a complaint with James' office urging an investigation into the NRA's finances.

James, who became New York's attorney general this year, vowed to investigate the NRA during her campaign. She even characterized the gun group as "a terrorist organization" in an interview with Ebony Magazine.

James' office has "special jurisdiction" over the NRA because the organization is chartered in New York, according to The Times.

How did the NRA respond?

Attorney William Brewer, outside counsel for the gun rights group, said the NRA will cooperate fully with the investigation.

"The NRA will fully cooperate with any inquiry into its finances. The NRA is prepared for this, and has full confidence in its accounting practices and commitment to good governance," he said in a statement.