"We will continue to intensify our efforts to end Maduro’s usurpation of Venezuela’s Presidency and will hold the military and security forces responsible for protecting the Venezuelan people", Bolton said in a statement on Twitter.
The United States has imposed numerous rounds of sanctions against Venezuela in response to the political developments in the country. In January, the United States blocked $7 billion in assets belonging to Venezuela’s oil company PDVSA.
READ MORE: PDVSA’s Subsidiary Seeking $1.2 Bln Loan Amid US Sanctions Against Venezuela
Bolton said Monday that Washington had put "on notice" the insurance companies and flag carriers facilitating oil shipments from sanctioned Venezuela.
Venezuela entered a tumultuous political crisis in January after opposition leader Juan Guaido proclaimed himself to be the country’s interim president.
READ MORE: US Seeks to Form Coalition For Gov't Change in Venezuela — Bolton
Maduro, who was sworn in for his second presidential term on 10 January after winning the May 2018 election, has called Guaido a puppet of the United States and has insisted that Washington is attempting to stage a coup in Venezuela.
READ MORE: US Not Planning Military Intervention in Venezuela, But Option on Table — Bolton