Venezuelan Foreign Minister Yvan Gil Pinto has told the United Nations General Assembly that the United States has an “illegal and completely immoral military threat hanging over our heads”, as reports emerge that the US is planning to escalate attacks on the South American country.

Pinto told the gathering of UN member states on Friday in New York that his country was grateful for the support of governments and people “that are speaking out against this attempt to bring war to the Caribbean and South America”.

The minister claimed US threats towards his country were aimed at allowing “external powers to rob Venezuela’s immeasurable oil and gas wealth”.

He also accused Washington of using “vulgar and perverse lies” to “justify an atrocious, extravagant and immoral multibillion-dollar military threat”.

Earlier on Friday, US broadcaster NBC News reported that US military officials are drawing up plans to “target drug traffickers inside Venezuela” with air attacks, citing two unnamed US officials.

US President Donald Trump said last week that US forces had carried out a third strike targeting a vessel he said was “trafficking illicit narcotics”. At least 17 people have been killed in the three attacks.

Experts have cast doubt on the legality of US attacks on foreign boats in international waters, while data from both the UN and the US itself suggest that Venezuela is not a major source of cocaine coming into the US, as Trump has claimed.

In an address to the UN General Assembly on Tuesday, Trump said of drug smugglers: “To every terrorist thug smuggling poisonous drugs into the United States of America, please be warned that we will blow you out of existence.”

By contrast, Colombian President Gustavo Petro used his UNGA address to call for a “criminal process” to be opened against Trump over the attacks on vessels in the Caribbean, which had killed Venezuelans who had not been convicted of any crime.

The US has so far deployed eight warships to international waters off Venezuela’s coast, backed by F-35 fighter jets sent to Puerto Rico, in what it calls an anti-drug operation.

Washington has also refused an appeal for dialogue from Venezuela’s President Nicolas Maduro, whom the Trump administration has accused of drug trafficking – a claim Maduro has strenuously denied.

Maduro and his late predecessor, Hugo Chavez, had once been regular presences at the annual UNGA meetings taking place in New York, but Maduro did not come this year, with US Secretary of State Marco Rubio describing him as a fugitive from justice over a US indictment on drug-trafficking allegations.

Back home in Venezuela, Maduro has called for military drills to begin on Saturday, to test “the people’s readiness for natural catastrophes or any armed conflict” amid US “threats”.

‘Our fishermen are peaceful’

Venezuelan fishers who spoke to the AFP news agency said that the US strikes on Venezuelan boats have made them fearful to venture too far from shore.

“It’s very upsetting because our country is peaceful, our fishermen are peaceful,” Joan Diaz, 46, told AFP in the northern town of Caraballeda.

“Fishermen go out to work, and they [the US] have taken these measures to come to our … workplace to intimidate us, to attack us,” he said.

Diaz said most fishers stay relatively close to shore, but that “to fish for tuna, you have to go very far, and that’s where they [the US forces] are.”

Luis Garcia, a 51-year-old who leads a grouping of some 4,000 fishermen and women in the La Guaira region, described the US actions as “a real threat”.

“We have nine-, 10-, 12-metre fishing boats against vessels that have missiles. Imagine the madness. The madness, my God!” he exclaimed.

“We keep contact with everyone … especially those who are going a little further,” he said.

“We report to the authorities where we are going, where we are, and how long our fishing operations will last, and we also report to our fishermen’s councils,” Garcia said.

But, Garcia added, they would not be intimidated.

“We say to him: ‘Mr Donald Trump, we, the fishermen of Venezuela … will continue to carry out our fishing activities. We will continue to go out to the Caribbean Sea that belongs to us.’”