Sri Lanka, April 20 -- Tehran is not currently planning to take part in new talks with the US, Iran state media reported on Sunday evening, as its military accused America of violating a fragile ceasefire between the two countries, hours after Donald Trump said he was dispatching negotiators to Islamabad.

President Donald Trump announced on Sunday that an Iranian cargo ship that tried to get past the US-enforced blockade near the strait of Hormuz had been seized. "We have full custody of their ship, and are seeing what's on board!" Trump wrote on social media.

Iran's military said the ship had been travelling from China. "We warn that the armed forces of the Islamic Republic of Iran will soon respond and retaliate against this armed pir...