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.
Eight Israeli airstrikes have hit the Abu al-Duhur military airbase in northwestern Syria early on Tuesday, targeting the runway and storage facilities, Syria's state-run Ekhbariya said, citing a military source.
Two students were killed in a shooting at a high school in the southern Philippines on Tuesday, one of them the gunman, officials said, in the second such incident in the country in less than two months.
The Supreme Court of Pakistan has ordered on Tuesday that former Prime Minister Imran Khan be moved to hospital from jail, his Pakistan Tehreek-e-Insaf party said, meeting a longstanding demand of his party and family, who had raised concerns about his health.
A Russian missile attack has killed 10 people and injured a further eight in a village in Ukraine's northeastern Kharkiv region, the regional governor said on Tuesday.
President Donald Trump said on Monday Iran would not make the deal he thinks is needed to end a war with the US and should surrender as talks between the countries remained stalled.