The son of former Argentine President Carlos Menem has been detained for cocaine and arms possession.

Police say that 34-year-old Carlos Nair Menem was detained early Tuesday along with another man in Moreno, a city outside of Buenos Aires.

Both were carrying rifles and 9-millimeter pistols but didn't have permits for the weapons. Police say they also had small quantities of cocaine. They were detained without incident and transferred to the prosecutor's office for charges.

Menem's half-sister Zulema told Todo Noticias that her brother had previously been treated for drug addiction.

Carlos Menem was president between 1989 and 1999 and is currently a senator.