I came across a short news article on Yahoo! Mexico; I have endeavored to translate it into English (original here: http://mx.news.yahoo.com/060411/38/1oflq.html )
"5000 Kilos of Cocaine Was Intercepted in Mexico on an Airplane Originating in Venezuela
Mexico, April 11. An airplane originating in Caracas loaded with five tons of cocaine was intercepted by Mexican authorities, as confirmed by the Procuraduría General de la República (PGR, Fiscalía).
The antidrug operation, in which personnel from the PGR and the National Secretary of Defense (Sedena) participated, started early Monday in the Mexican state of Campeche, in the Gulf of Mexico.
The airliner, a DC-9, originating in Caracas, was intercepted at Campeche International Airport with its payload of contraband inside, according to the same sources.
In the next few hours, the authorities from PGR and Sedena will offer more details of the operation, by the time of which several persons will have been detained."
Hopefully we will have additional information, including the plane - was it a passenger or cargo plane? At this time, I cannot locate anything else.