London (CNN) Authorities in the United Kingdom have sent the US State Department an extradition request for Anne Sacoolas, the wife of a former US diplomat who has been charged with causing the death of a teenager in England.

Harry Dunn, 19, was riding a motorcycle in August outside a military base in central England used by the US Air Force and died in a crash.

Sacoolas was charged in December with causing Dunn's death by dangerous driving. Police have said the vehicle that hit Dunn's motorcycle was driving on the wrong side of the road.

"This is now a decision for the US authorities," a statement issued by the UK Home Office read.

Sacoolas claimed diplomatic immunity and left the country in the aftermath of the incident. In October, Sacoolas' attorney said that officers interviewed her in the UK twice before she claimed immunity.

Read More