A Muslim ninth-grader in Texas has been suspended after bringing a homemade clock to school that administrators believed was a bomb, according to a report.

Ahmed Mohamed, 14, brought the clock to MacArthur High School in Irving, Texas. School administrators called the police, who handcuffed Mohamed. He was punished with a three-day suspension, according to The Dallas Morning News.

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The report said that Mohamed, an intrepid tinkerer, also makes his own radios and repairs go-karts.

“He just wants to invent good things for mankind,” said the boy’s father, Mohamed Elhassan Mohamed, a Sudanese immigrant.

“But because his name is Mohamed and because of Sept. 11, I think my son got mistreated,” he added, citing the 14th anniversary last weekend of the 9/11 terrorist attacks.

The school district’s suspension of the teenager is now inspiring widespread outrage on social media with the hashtag #IStandwithAhmed.

Multiple Twitter users criticized the Irving Police Department’s investigation of Ahmed Mohamed.

Comic Felonious Monk, meanwhile, changed his Twitter handle to #IStandwithAhmed in a show of solidarity with the Texas teenager.

The Dallas Morning News reported on Tuesday that Ahmed Mohamed’s English teacher reported him to school administrators after his clock’s alarm erupted in class.

The newspaper added that he was then escorted to the principal’s office, where five police officers questioned him about the device.

“They were like, ‘So you tried to make a bomb?’” Ahmed Mohamed reportedly said. “I told them ‘No, I was trying to make a clock.’ [One officer] said, ‘It looks like a movie bomb to me.’”

Irving police spokesman James McLellan said that concerns over Ahmed Mohamed’s device are justified given it is unclear what the device is at first glance, according to the newspaper.

“We have no information that he claimed it was bomb,” he added. “He kept maintaining it was a clock, but there was no broader explanation.”

“It could reasonably be mistaken for a device if left in a bathroom or under a car,” McLellan reportedly said. “The concern was, what was this thing built for? Do we take him into custody?”

Irving Police Chief Larry Boyd told reporters at a news conference on Wednesday that no charges would be filed against Ahmed Mohamed.

The Council on American-Islamic Relations is reportedly investigating the incident for anti-Muslim bigotry.

President Obama on Wednesday invited the high school freshman to the White House.

Democratic presidential candidate Hillary Clinton’s campaign also encouraged him to “stay curious.”

--This report was updated at 1:13 p.m.