Media reports say Saudi Arabia, the United Arab Emirates, Egypt and Bahrain have broken off diplomatic relations and all land sea and air contacts with Qatar, accusing it of destabilizing the region.

According to the Guardian, Saudi Arabia on Monday said the move was necessary to protect the kingdom from what it described as terrorism and extremism. The kingdom also pulled all Qatari troops from the coalition fighting the ongoing war in Yemen.

Saudi Arabia reportedly cut all land air and sea contacts with Qatar “and urges all brotherly countries and companies to do the same.” Despite the order for the border with Qatar to be closed, Saudi Arabia said that it will continue to provide all services and facilities needed by Qatari pilgrims currently in the Kingdom.

The decision comes after Qatar alleged in late May that it was the victim of a sophisticated propaganda assault including the publication of a series of articles hostile to Qatar in the US and the hacking of the Qatar government website in a bid to undermine its standing in the Gulf and in Washington.

The hacking of the website led to the publication of false remarks by the emir, Sheikh Tamim bin Hamad Al Thani, that purportedly had him criticizing some leaders of fellow Gulf Arab states and calling for an easing of tensions with Iran.  Qatar claimed there was “a hostile media campaign against the State of Qatar.”

In response to the alleged comments by the emir, Saudi Arabia and the UAE both blocked Qatari-based news outlets, including Al Jazeera, from broadcasting in their territory.

The United Arab Emirates cut ties with Qatar on Monday, accusing its Gulf Arab neighbor of supporting extremism and undermining regional stability, according to Reuters.

Quoting UAE’s state news agency WAM, Reuters says the Emirates cut ties and gave diplomats 48 hours to leave the country, citing their “support, funding and embrace of terrorist, extremist and sectarian organizations.”

Egypt said it was severing ties over Qatar's support for terrorist groups.

Reuters reports Bahrain said on Monday it cut diplomatic relations with Qatar, accusing its fellow Gulf Arab state of backing terrorism and interfering in Bahrain's internal affairs.

Qatar reportedly had no immediate comment.