Hong Kong media tycoon Jimmy Lai is being detained until an April court hearing after the pro-democracy supporter was charged Thursday with fraud, per his Apple Daily news outlet.

Why it matters: The 72-year-old's arrest and denial of bail is another blow for the pro-democracy movement in the former British colony amid concerns about a fresh crackdown on activists.

• Pro-democracy campaigners Joshua Wong, Agnes Chow and Ivan Lam were sentenced to prison Wednesday over last year's massive protests.
• Lai became in August the most prominent person to be arrested under the Chinese territory's national security law that gives Beijing more powers over Hong Kong.

Of note: Lai's latest arrest, along with two other senior executives from media company Next Digital, is related to the "illegal use of his company's premises," the BBC notes.

Go deeper: Arrest of Jimmy Lai highlights different kind of shareholder activism