TOKYO (Reuters) - SoftBank founder Masayoshi Son took to Twitter on Wednesday to offer a million free coronavirus tests, only to get hit by a barrage of criticism that he risked overwhelming medical facilities, prompting him to say he might reconsider the plan.

FILE PHOTO: Japan's SoftBank Group Corp Chief Executive Masayoshi Son attends a news conference in Tokyo, Japan, November 5, 2018. REUTERS/Kim Kyung-Hoon/File Photo

The SoftBank Group chief executive, who last posted on Twitter three years ago, expressed concern about the coronavirus outbreak, telling Twitter followers on Tuesday he was planning to take action.

“I would like to provide the opportunity for free PCR testing for those who are worried about the novel coronavirus,” Son (@masason) tweeted on Wednesday. “First, for one million people. We are preparing how they can apply,” he said, referring to polymerase chain reaction (PCR) tests which can detect very early infections.

His proposal was met with criticism that it would overburden medical facilities and workers.

Son said he had visited Japan’s health ministry on Wednesday as he wanted to cooperate so that the testing would not cause any burden.

He also tweeted an illustration of the PCR scheme under consideration, in which a person could take a nasal swab at home and mail it to a lab which would test the specimen send back the results.

But about two hours after his first tweet announcing the PCR test plan, he took to Twitter again to say he might reconsider given the negative feedback.

“Since it’s been badly received, maybe I won’t do it...” he said.

The coronavirus has spread around the world, with more than 116,000 confirmed cases and 4,000 deaths.

Japan has reported close to 1,300 infections, with more than half coming from the quarantined Diamond Princess cruise ship, and 19 deaths.