Four staff members were injured on Tuesday when a student attacked them with a knife in a school in the Norwegian capital Oslo, police said.
The student was arrested but the motive was not immediately clear, The Independent daily reported.
The four victims, all employees at Brynseng School, were taken to hospital with minor injuries.
An Oslo Police official described the suspect as "very young". He said an investigation had been launched.
US President Donald Trump, who just arrived in Paris for WWI 100th anniversary commemorations, said on Friday that French president Macron's suggestion of Europe building its own military to protect itself from US and other nations "very insulting".
The H1B visa, popular among Indian IT firms and professionals, is a non-immigrant visa that allows US firms to employ foreign workers in speciality occupations that require theoretical or technical expertise.
Google is promising to be more forceful and open about its handling of sexual misconduct cases, a week after thousands of high-paid engineers and others walked out in protest over its male-dominated culture.
The White House said that there is need to carry on reforms in H-1B to keep more talented graduates in this country.
A 25-year-old Indian worker was found hanging in his accommodation here, a Sharjah Police official said.
A statue of a Sikh soldier honouring South Asian soldiers' role in the First World War, which was unveiled less than a week ago has been vandalised.