Guatemalan authorities say the lawyer representing former dictator Efrain Rios Montt against genocide charges has been gunned down in the Central American nation's capital.

Firefighters report that Francisco Palomo was shot multiple times while driving through a residential neighborhood of Guatemala City around midday Wednesday.

There is no immediate word on any suspects.

Palomo defended Rios Montt in his 2013 trial on charges of genocide and crimes against humanity. Rios Montt was sentenced to 80 years in prison, but that conviction was quickly overturned and a new trial ordered.

Earlier this year a retrial was delayed indefinitely after the defense won a motion to have one of the three judges hearing the case recuse herself.