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.
The US military said on Thursday night it had carried out a fresh wave of strikes on Iranian military targets, marking the 13th consecutive night of American attacks.
Leaders of India's youth-led "cockroach" movement said on Friday that the government has asked for time until Saturday afternoon to respond on their demand for the education minister's resignation, following talks between the two sides.
The Spanish government on Thursday night declared a national emergency after a series of wildfires threatened communities near Madrid and in the neighbouring province of Avila, forcing more than 10,000 people to evacuate as firefighters struggled to contain the blazes.
Bangladesh President Mohammed Shahabuddin, a former ally of ousted Prime Minister Sheikh Hasina, has resigned citing serious health issues, his office said on Friday.
A Russian ballistic missile strike on Friday in Ukraine's Kyiv region killed 10 people and injured close to 100 others at a site where a defence industry event was being held, Ukrainian officials and industry representatives said.