The United Arab Emirates has banned people from publishing expressions of sympathy towards Qatar and will punish offenders with a jail term of up to 15 years.
The United Arab Emirates, along with several other powerful Arab states, severed diplomatic ties with fellow Gulf state Qatar Monday over its alleged support for Islamist groups and Iran. Qatar denies the accusations.
U.S. President Donald Trump took sides in the deep rift in the Arab world Tuesday, praising Middle East countries' actions against Qatar, but later spoke by phone with Saudi King Salman and stressed the need for Gulf unity.
Strict and firm action will be taken against anyone who shows sympathy or any form of bias towards Qatar, or against anyone who objects to the position of the United Arab Emirates, whether it be through the means of social media, or any type of written, visual or verbal form, UAE Attorney-General Hamad Saif al-Shamsi declared.
On top of a possible jail term, offenders would also be hit with a fine of at least 500,000 dirhams citing a statement to Arabic-language media.
Since the diplomatic row erupted, slogans against and in support of Qatar have been among the top topics discussed on Twitter in Arabic, which is a hugely popular medium of expression in the Arab world, particularly in Saudi Arabia.
Newspapers and television channels in the region have also been engaged in a war of words over Qatar's role.
Meanwhile, A man armed with a hammer shouted "this is for Syria" before attacking police officers on Tuesday outside France's Notre Dame cathedral in Paris, the interior minister said.
The assailant wounded one officer before he was shot and wounded by other officers. The Paris prosecutor's office swiftly began a counter-terrorism investigation.
Interior Minister Gerard Collomb said the attacker was carrying the identification card of an Algerian student. He said preliminary information indicated the attacker had acted alone.
Dozens of armed police sealed off the area and the cathedral in central Paris that is visited by millions of tourists every year was locked down while the security forces secured the area.
It is the first attack since President Emmanuel Macron won last month's election and comes days before a parliamentary poll in which opinion surveys show Macron on course to win a landslide majority. His rivals portrayed him as weak on security during the presidential campaign.
Situation under control, one policeman injured, the assailant was neutralized and taken to hospital, Paris police said on Twitter.
France is under a state of emergency after a wave of militant attacks since early 2015 that have killed more than 230 people across the country. Soldiers patrol its streets alongside police to guard tourist sites, government buildings and events.
Hundreds of tourists were inside the cathedral when the attacker struck.
One holidaymaker inside Notre Dame posted on Twitter: Not the holiday experience wanted. Trapped in Notre Dame Cathedral after police shoot a man. We are with our 2 terrified children.
Karine Dalle, a spokeswoman for the Paris diocese, told BFM TV 900 people were inside the cathedral as police secured the area.
Both France and Britain have suffered a spate of militant attacks in recent months.
In London, militants on Saturday drove a van at high speed into pedestrians on London Bridge before stabbing night revelers on the street and in nearby bars, killing at seven people and wounding dozens. That followed a suicide bombing in Manchester that killed 22 people.
In France, days before the first round of the presidential election in April, a policeman was shot dead and two others wounded. ISIS claimed the attack as well as those in London and Manchester.
In September, three women were arrested after police found a car laden with gas cylinders abandoned near Notre Dame. The interior ministry at the time said it was likely an attack had been imminent.