The North Charleston man accused of leading police in a chase that resulted in a crash and injuries to a pregnant woman and her 9-year-old daughter last year has pleaded guilty to federal charges against him.

Cleo Williams Jr., 24, of Foxwood Drive pleaded guilty Monday to possession of a weapon by a convicted felon, using and carrying a firearm during a drug trafficking crime and conspiracy to possess with intent to distribute cocaine.

Those federal charges had been tacked on following Williams’ arrest and charges by North Charleston police following a chase through North Charleston, authorities said.

The state charges of failure to stop for blue lights, unlawful carrying of a pistol, assault and battery, hit and run, leaving the scene of an accident and driving under suspension remain pending.

On Sept. 6, police tried to stop Williams on Rivers Avenue near Greenridge Road as part of a drug investigation.

Williams sped up and police chased him, according to authorities. He crashed into three cars on Rivers Avenue near Otranto Road, police said.

The 27-year-old pregnant woman and her daughter, who were hospitalized after police said Williams’ car crashed into theirs, have filed a lawsuit against Williams. The family is seeking damages to pay for their medical bills.

Someone in another car that was hit was also hospitalized, according to police.

Williams remains behind bars at the Charleston County jail. He is scheduled to be sentenced for the federal charges in a few months.