The helicopter allegedly dropped four grenades at the Venezuelan Supreme Court and fired 15 shots at the interior ministry.
In a tweet by AFP, an unnamed minister claimed the helicopter dropped four grenades at the Venezuelan Supreme Court and fired 15 shots at the interior ministry.
Earlier, President Nicolas Maduro in a speech Tuesday, June 27, 2017 had alleged that the attack was against his government, adding that the weapons failed to explode.
"I have activated the entire armed forces to defend the peace," he said in remarks delivered from the Miraflores presidential palace.
Maduro said he has put the military on alert to respond to the alleged assault.
"Sooner or later, we are going to capture that helicopter and those that carried out this terror attack," he declared.
He did not say when the alleged attack is supposed to have occurred, and said no one was injured and that the grenades failed to detonate.
In his speech, Maduro, 54, said that in addition to firing on Venezuela's high court, the helicopter flew over the Justice and Interior Ministeries.