By Jeremy McDermott
BBC News, Colombia
**A Colombian attack on a rebel camp in Ecuador in March 2008 was carried out with support from US forces based in Ecuador, a new report alleges.**The report was prepared for the Ecuadorian government.
It says that US intelligence provided from a base within Ecuador was used in the execution of the attack.
The report comes at a bad time as Ecuador and Colombia were just beginning to re-establish diplomatic relations.
‘Anti-drug missions’
The Colombian military operation in March 2008 saw a Colombian rebel base within Ecuador bombed.
At the time Washington had a military base in Manta, in the north of Ecuador, granted under an agreement that allowed the US to conduct anti-drug missions in the region.
The report said that the support provided by US military went beyond that agreement.
Now the US has a military pact with Colombia, which gives the Americans military access to bases here.
President Hugo Chavez of Venezuela has frozen diplomatic links fearing that the US-Colombia military pact is the first step to an attack on his nation.