Such information was reported by the publication of Noticias 24.
According to the president, the grenades did not work, but eyewitnesses in social networks write that they heard explosions.
Maduro said that one of the invaders of the helicopter had previously been a pilot of Miguel Rodriguez Torres, an ex-Interior Minister who is in contact with the CIA.
In this regard, Maduro expressed the hope that the opposition will condemn this attack. In addition, the country's leader ordered the country's air forces and the air defense system to be operationally alert, calling the incident a terrorist act.
"The photos of the helicopter posted on social networks confirm that the crew stretched a poster with the inscription" 350.
Freedom, "said Venezuelan Minister of Communications and Information Ernesto Villegas.
It is a question of the 350th article of the Constitution, which speaks about the possibility of citizens not recognizing the authorities in case of violation of democratic values, principles and guarantees, as well as human rights.
At the moment, no additional information has been received about the dead or injured.
Recall, as previously reported, "URA-Inform," in Venezuela, protesters set fire to the Supreme Court building.