Three strikes and you're out
The AP reports Brazilian Rocket Explodes on Launching Pad:

SAO PAULO, Brazil (AP) - A rocket undergoing final pre-launch tests exploded on its launch pad Friday, killing an unknown number of people, officials said.

"There are dead, military and civilians, but we don't know how many," said Brazilian Air Force Col. Romeo Brasileiro.

The explosion destroyed the VLS-3 rocket, which was undergoing tests at the Alcantara Launch Center near Sao Luis, 1,460 miles north of Sao Paulo.
...
It was Brazil's third failed attempt to send a Satellite Launch Vehicle into space with a research satellite.

A rocket launched in November 1997 crashed in the Atlantic Ocean after suffering engine problems shortly after blast-off.

In December 1999, another Brazilian rocket developed problems and failed three minutes after takeoff. Officials remotely destroyed the rocket.

Brazil's rocket base is a relic of a past military government, but even with the socialists in charge they still have a space program. The base does have a useful location in being close to the equator. On the other hand, why would a country as poor as Brazil be in the space business itself, instead of renting out the place for others to launch from?