The new service, called BBC News Polska, will go live on June 24, initially as a one-year pilot project.
The BBC says "the website bbc.com/polska will deliver independent and impartial news in text and video for Polish-speaking audiences."
It adds that the new service "will help counter a wave of disinformation in the region and provide news and analysis on areas audiences are seeking information on, including the ongoing wars and conflicts, health, climate change, and the cost of living."
BBC News Polska content will also be available on Facebook and Instagram.
'Produced with the help of AI'
"BBC News Polska will be the first new language offer from the BBC World Service produced with the help of AI translation technology," the broadcaster said in a statement.
"BBC News Polska will work innovatively to harness existing translation and transcription tools to bring the best of the BBC’s journalism to new audiences," the statement added.
"The translation of BBC reporting will always have human editorial oversight and, where used, will be clearly labelled," the BBC also said.
The platforms will host content from BBC presenters Kasia Madera and Tomasz Schafernaker, it announced.
'Independent, impartial news'
"The BBC World Service has bold plans to pilot more non-English-language content where there is a demand for independent, impartial news as press freedom reduces globally and disinformation is rife," according to the statement.
"Today, as we face a storm of disinformation and ever-growing attacks on media freedom, democracy and regional security, BBC News Polska is a major step towards serving more audiences around the world with content they can trust," said Jonathan Munro, global director and deputy CEO of BBC News.
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Source: bbc.co.uk, bbcpolska.com