Travellers to Iran from Europe will be required to self-quarantine for two weeks after testing negative upon arrival, a health official said on Saturday.
Travellers from other regions, including neighbouring countries, will have to have tested negative before arrival in the country, Alireza Raisi, spokesman for the national coronavirus task force, said on state TV.
Raisi said travellers arriving from Europe should be holding negative test results, will be tested again and will have to self-quarantine even if their test is negative, state media reported.
Previously, people coming from Europe were only required to test negative.
He did not say when exactly the new measures will go into effect, saying only "from now on."
Meanwhile, health officials said the Iranian-manufactured Barekat vaccine was found effective against the highly contagious coronavirus variant that emerged in Britain.
Cuban forces have killed four exiles and wounded six others who sailed into Cuban waters aboard a Florida-registered speedboat on Wednesday and opened fire on a Cuban patrol, the Cuban government said at a time of heightened tensions with the United States.
The death toll from the heavy rains in Brazil's southeastern state of Minas Gerais has risen to 46, according to figures released by the state fire department on Wednesday.
A nearly blind refugee from Myanmar missing since his release from a Buffalo jail into the custody of US Border Patrol has been found dead on a downtown street, city authorities said on Wednesday.
A record 129 journalists and media workers were killed in the course of their work last year, two-thirds of them killed by Israel, the Committee to Protect Journalists said on Wednesday.
Britain on Wednesday rowed back from saying it had paused ratification of a deal to cede sovereignty of the Chagos Archipelago, which is home to a strategically important US-UK air base.