Britain has sold some £1.1 billion military equipment to Saudi Arabia in the first six months of this year, the latest government data shows.

According to statistics by the Department for International Trade (DIT), between April and June, the United Kingdom sold £836 million worth of arms and military hardware to the Saudis, which has increased form £280 million between January and March.

The report comes amid increasing concerns over the Saudi military’s aggression against Yemen.

Since 2015, when Riyadh launched a military campaign against Yemen, more than 12,000 Yemeni people have been killed and much of the country’s infrastructure, including hospitals, schools and factories have been destroyed.

The enormous sums were “shameful profiteering by the arms companies from a conflict which has killed thousands of civilians and subjected millions to famine and disease,” the Guardian quoted Jo Swinson, the deputy leader of the Liberal Democrats, as saying.

“There is no justification for the UK to continue selling billions of pounds worth of weapons to Saudi Arabia while they continue their operation in Yemen,” Swinson added.

In recent years, the British government has come under severe criticism for selling arms to Saudi Arabia, which just in October last year, admitted to dropping two bombs on a funeral in Sana’a, which killed some 140 people and injured 600 others.