Press rights watchdog Reporters Without Borders on Friday slammed last week's arrest of a Kuwaiti blogger who has been charged with blasphemy over a controversial tweet.

Mohammed al-Ajmi was released Thursday after spending eight days behind bars over a comment posted on Twitter in which he criticized an Islamist group.

Interior Minister Nouhad al-Mashnouq has been invited to the Gulf Cooperation Council's interior ministers' meeting scheduled to be held in Doha next week, al-Akhbar newspaper reported on Tuesday.

Al-Mashnouq will be the “guest of honor” in the meeting that would also be attended by five cabinet ministers from the GCC countries, the daily said.

A Kuwaiti national was abducted on Saturday in the eastern city of Baalbek, media reports said.

The abductors are reportedly demanding one million dollars in exchange for his release.

The United States imposed sanctions Friday on two Islamic extremists it accuses of ties to al-Qaida and the al-Nusra Front, alleging they financed and acted on behalf of the terror groups.

Under a designation issued by the U.S. Treasury, any assets the men -- Saudi and Kuwaiti nationals -- hold under U.S. jurisdiction are frozen and Americans are "generally prohibited from doing business with them."

A Kuwaiti, Hajjaj bin Fahd al-Ajmi, considered a financier of Al-Nusra Front, a Syrian rebel group linked to al-Qaida, was arrested Wednesday on his return from a visit to Qatar, activists said.

They said on Twitter that Ajmi, 26, was arrested at Kuwait airport.

Kuwait has revoked the citizenship of 10 people, including activists, the government said Monday in the second such move in less than a month as part of a crackdown on dissent.

The decision announced after a cabinet meeting did not identify those affected by the decision, but local media said they were opposition figures.

Kuwait said Thursday it was committed to fighting terrorism and its funding after the United States sanctioned three Kuwaitis accused of providing money, fighters and weapons to extremist groups.

The United States imposed sanctions on three men, two of them Kuwaiti, on Wednesday, accusing them of providing money, fighters and weapons to extremists in Iraq and Syria.

Under the order, issued by the U.S. Treasury, any assets the men hold in the United States are frozen and American citizens and residents are "generally prohibited" from doing business with them.

Kuwait has stepped up controls on Islamic charities, including donations for war-ravaged Syria, as part of measures to curb funding for extremists, newspapers reported Tuesday.

A Kuwaiti opposition group said Thursday the revoking of citizenship of government opponents and licenses of media outlets is "unconstitutional" and described it as an act of "political vengeance."

"These are purely acts of political vengeance which are not based on the constitution, the basics of the law and the norms of the society," said a statement issued by a group of former opposition parliamentarians.