MADRID - From blocking airports to using encrypted messaging apps, Catalan separatists demonstrating against the jailing of nine of their leaders are openly copying tactics devised by pro-democracy protesters in Hong Kong.

Shortly after Spain's Supreme Court last Monday (Oct 14) sentenced nine Catalan leaders to prison terms of up to 13 years over their role in a failed 2017 independence bid, 240,000 users of Russian-designed messaging app Telegram received a message urging them to head to Barcelona's El Prat airport, Spain's second busiest.

The goal according to the message - sent by a new anonymous separatist organisation called Democratic Tsunami - was to "paralyse" the airport, just as demonstrators did in Hong Kong in September.

The app made it possible for protesters to download a boarding pass for an afternoon flight so they could get through airport security checks.

While few protesters managed to enter the terminal, some 10,000 people gathered outside, preventing airline crew from getting to work and forcing the cancellation over 100 flights.

In Hong Kong, activists bought plane tickets to enter the terminal.

Democratic Tsunami ended one of its messages with the hash-tag #BeWater, the slogan for a protest strategy born in Hong Kong based on speed and unpredictability.

The slogan, based on a catchphrase used by Hong Kong's late kung fu legend Bruce Lee, circulates on Twitter in Catalan.

'LOOK AT HONG KONG'

Demonstrators have at times used laser pointers against police in Barcelona, a popular tactic in Hong Kong where millions have since June taken to the streets to push for democracy and police accountability in the former British colony, even though it is "very uncommon here", a spokesman for Catalonia's regional police force, the Mossos d'Esquadra, told Agence France-Presse.

Many Catalan protesters cite the demonstrations in Hong Kong as a source of inspiration.

"Now people must be in the streets, all revolts start there, look at Hong Kong," Victoria Santos, 62, told AFP last Wednesday at a protest in Barcelona.

"Hong Kong gave the example of how to give global attention to a local conflict," Jordi Barbeta, a columnist with daily Catalan newspaper El Nacional wrote in an opinion piece last month.

The use of the Telegram app by Catalan separatists was "directly" copied from the Hong Kong protests, said a member of Catalan separatist group "Picnic for the Republic" which blocked access to Barcelona's iconic Sagrada Familia basilica last Friday (Oct 18). He spoke on the condition that he not be named.

In September, Catalonia's biggest grassroots separatist group, the Catalan National Assembly (ANC), invited its members to a conference called "The use of new technologies in non-violent struggle: the example of Hong Kong".

Online messaging services like Telegram "guarantee the reliability and the confidence of users," ANC national secretary Jordi Vilanova told AFP.

SAME YELLOW HARDHATS

Sometimes Catalan separatists simply use the same fliers handed out in Hong Kong.

An info-graphic explaining what positions to adopt to protect yourself from police water cannons shared on social media by Catalans separatists still had instructions written in Chinese.

Fliers distributed last Thursday by the radical separatist group CDR reproduced an info-graphic made by Hong Kong activists that outlines how to protect yourself from tear gas and other police tools.

A Catalan separatist group set up in August even started using yellow hardhats just as protesters do in Hong Kong and called itself "Cascos grocs" in Catalan or "Yellow hats".

Hong Kong singer and pro-democracy activists Denise Ho Wan-See, cartoonist Badiucao and Berlin-based Chinese artist and free speech advocate Ai WeiWei have all backed the Catalan protests on social media.

"There is sympathy between these minorities which do not have enough political space to express themselves" but "that does not mean that we are going to have a common strategy," said Vilanova of the ANC.

China's government-run English-language newspaper China Daily last Tuesday warned "separatism will not be tolerated in any country" along with the hash-tag #HongKong and a video showing clashes between protesters and police at Barcelona airport.