April 17 (Reuters) - One of Ukraine's main media

companies, 1+1 Media, said its satellite TV channels had

suffered a cyberattack on Wednesday.

It said in a statement that 39 channels, including some of

its own, were currently unavailable.

"Another attempt took place to jam satellite broadcasting of

Ukraine on the Astra 4A 11766 H transponder, where 39 TV

channels broadcast," the company said.

1+1 Media said that since March Russia had started "active

signal jamming" of TV channels on two satellites that belong to

European operators SES and Eutelsat.

Ukraine has suffered a string of cyber attacks since

Russia's full scale invasion in February 2022, which Kyiv has

blamed on Moscow. Russian authorities have not responded in the

past to requests for comment about such allegations.

SES and Eutelsat did not immediately respond to emailed

requests for comment.

Ukraine's 24 Channel said on its website that its satellite

broadcast had also been affected as hackers "launched their

propaganda".

"After two hours of the attack, the signal was restored, but

the attack started again," it said.