American warships had a tense encounter with Iranian warships in the Persian Gulf, earlier this month.

Amid the wide Turmoil between the countries over the nuclear deal, it is the first such incident in about a year. 

Footage released by the US Navy, on Tuesday, showed a ship commanded by Iran’s paramilitary Revolutionary Guard cut in front of the USCGC Monomoy, which caused the Coast Guard vessel to come to an abrupt stop with its engine smoking in April.

“The U.S. crews issued multiple warnings via bridge-to-bridge radio, five short blasts from the ships' horns, and while the (Iranian) Harth 55 responded to the bridge-to-bridge radio queries, they continued the unsafe maneuvers,” Cmdr. Rebecca Rebarich, a spokeswoman for the Navy's Mideast-based 5th Fleet said.

“After approximately three hours of the U.S. issuing a warning and conducting defensive maneuvers, the (Iranian) vessels maneuvered away from the U.S. ships and opened the distance between them.”

 Iran had largely stopped such incidents in 2018 and nearly in the entirety of 2019, she said.

US Navy said that the vessel passed in an “Unsafe and unprofessional” manner in front of a U.S. Coast Guard vessel in the Persian Gulf on the second of April this year.