$30,000 reward offered for information on missing Indian baby Saanvi Venna

Tehran, Mar 15: Two hundred and thirty-four Indians stranded in coronavirus-hit Iran have arrived in India, External Affairs Minister S Jaishankar said on Sunday.

The batch comprises 131 students and 103 pilgrims, he said.

“234 Indians stranded in Iran have arrived in India; including 131 students and 103 pilgrims. Thank you Ambassador Dhamu Gaddam and @India_in_Iran team for your efforts. Thank Iranian authorities,” Jaishankar tweeted.

The third batch of Indians from Iran arrived early Sunday. A second batch of 44 Indian pilgrims had arrived from Iran on Friday.

Iran is one of the worst-affected countries by the coronavirus outbreak and the government has been working on plans to bring back Indians stranded there.

The first batch of 58 Indian pilgrims were brought back from Iran on Tuesday.

Washington, May 28: US President Donald Trump has warned social media giants that his government could "strongly regulate" or "close them down" after Twitter fact-checked one of his tweets for the first time.

"Republicans feel that Social Media Platforms totally silence conservatives voices," Xinhua news agency reported citing Trump as saying in a tweet to his 80 million followers on Wednesday.

"We will strongly regulate, or close them down, before we can ever allow this to happen."

Later in the day, he said that Twitter "has now shown everything we have been saying about them... is correct" and vowed "big action to follow".

The President's remarks came after Twitter slapped a warning label on one of his tweets on Tuesday, cautioning readers "Trump makes unsubstantiated claim that mail-in ballots will lead to voter fraud".

It was in response to Trump's tweet, without providing evidence, said: "There is NO WAY (ZERO!) that Mail-In Ballots will be anything less than substantially fraudulent."

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It is unclear what regulatory steps the president could take without new laws passed by Congress, the BBC reported.

The White House is yet to offer further details.

Earlier, Trump has accused Twitter of interfering in this year's US presidential election scheduled for November, saying the company was "completely stifling free speech, and I, as president, will not allow it to happen".

With more than 52,000 tweets currently to his name, Trump is a prolific tweeter and relies on the platform to disseminate his views to millions of people.

He has used Twitter to launch attacks on opponents, with targets ranging from North Korean leader Kim Jong-un to his political rivals in the US.

In 2017 he used anti-Muslim tweets aimed at London Mayor Sadiq Khan to serve a domestic political purpose of warning about immigration.

Melbourne, Apr 10: Scientists have identified six drug candidates from more than 10,000 compounds that may help treat COVID-19.

The research, published in the journal Nature, tested the efficacy of approved drugs, drug candidates in clinical trials and other compounds.

"Currently there are no targeted therapeutics or effective treatment options for COVID-19," said Professor Luke Guddat from the University of Queensland in Australia.

"In order to rapidly discover lead compounds for clinical use, we initiated a programme of high-throughput drug screening, both in laboratories and also using the latest computer software to predict how different drugs bind to the virus," Guddat said.

The project targeted the main COVID-19 virus enzyme, known as the main protease or Mpro, which plays a pivotal role in mediating viral replication, the researchers said.

This makes it an attractive drug target for this virus, and as people don't naturally have this enzyme, compounds that target it are likely to have low toxicity, they said.

"We add the drugs directly to the enzyme or to cell cultures growing the virus and assess how much of each compound is required to stop the enzyme from working or to kill the virus. If the amount is small, then we have a promising compound for further studies," said Guddat.

After assaying thousands of drugs, researchers found of the six that appear to be effective in inhibiting the enzyme, one is of particular interest.

"We're particularly looking at several leads that have been subjected to clinical trials including for the prevention and treatment of various disorders such as cardiovascular diseases, arthritis, stroke, atherosclerosis and cancer," Guddat said.

Researchers said compounds that are already along the pipeline to drug discovery are preferred, as they can be further tested as antivirals at an accelerated rate compared to new drug leads that would have to go through this process from scratch.

"With continued and up-scaled efforts we are optimistic that new candidates can enter the COVID-19 drug discovery pipeline in the near future," Guddat said.