Cristina Fernandez de Kirchner
Argentine President Cristina Fernandez de Kirchner sent the controversial tweet while in BeijingReuters

Argentina's president Cristina Fernandez de Kirchner has mocked the Chinese accent on social media during an official visit to the country, where she met with China's president Xi Jinping.

Replacing the letter 'r' with the letter 'l,' Fernandez mockingly wrote in Spanish "Did they only come for lice and petloleum?"

"Sorry, you know what? The levels of ridiculousness and absurdity are so high they can only be digested with humour. If not they are really, really toxic" she added in another tweet.

Fernandez was visiting Beijing with a delegation of Argentinian businesses in a bid to raise investment in Argentina's economy, which has fallen into a new recession. The country defaulted on its debts in 2014.

Fernandez had earlier announced that she had signed 15 agreements with her Chinese counterpart on a range of issues, including nuclear energy and agriculture.

Buenos Aires saw its peso currency slide 23% against the dollar last year, as the country defaulted for the second time this century. It has relied on Chinese loans to maintain some stability in the exchange rate.

For its part, China is interested in investing in shale oil and gas development in Argentina's Vaca Muerta (dead cow) fields.