It has been revealed the number of open licences for weapons given to Saudi Arabia has increased considerably since Mrs May became Prime Minister, with the Kingdom leading a coalition of nine Arab countries in airstrikes against Yemeni rebels and their allies.
A Downing Street spokeswoman said: "The meeting agreed a landmark ambition for around £65 billion of mutual trade and investment opportunities over the coming years, including direct investment in the United Kingdom and new Saudi public procurement with United Kingdom companies".
The prince's comments were the latest broadside in a heated rhetorical battle among Saudi Arabia, Iran and Turkey as the three Middle East powerhouses vie for predominance at a time of deepening confrontation.
British officials were particularly pleased with the decision of 32-year-old Saudi leader to choose Britain as the main Western destination during his first trip overseas since he became the heir of the Saudi Kind last year.
Yet concerned diplomats and worldwide aid organisations say the war has turned into a human rights catastrophe.
During the often rowdy prime minster's questions session in the British Parliament Wednesday, Theresa May brought her A game, slapping down Labour Party leader Jeremy Corbyn for "mansplaining" to her.
Deal strictly with those vandalising statues, Rajnath Singh tells parties
Prime Minister Narendra Modi inaugurated the new building of Central Information Commission (CIC) in New Delhi on Tuesday. The Ministry has taken serious note of such incidents of vandalism.
Ms Thornberry urged the Prime Minister to "tell the truth to friends" in her meeting with the Crown Prince and Saudi officials, adding: "Our relationship with Saudi Arabia is an important one but that doesn't mean that we should be pulling our punches".
Mohammed bin Salman, known as MBS, was accused of funding extremism in the United Kingdom, committing human rights abuses domestically, and breaching worldwide humanitarian law in Yemen, where Riyadh has intervened in a war that has killed thousands of civilians and driven the Middle East's poorest country to the brink of starvation.
He will also meet with Prime Minister Theresa May at her rural retreat, Chequers, and Defence Secretary Gavin Williamson to discuss terrorism and military co-operation.
The UK government made over £1.1bn ($1.5bn) from arm sales to Saudi Arabia in 2017 alone, according to government figures. Since 1953 Saudi Arabia has been ruled by a series of ageing brothers and his father, King Salman, is 82, but Prince Mohammed has been plucked from the next generation.
"This vindicates the engagement that we have with Saudi Arabia, to be able to sit down with them", she said. I don't call reform. "There is nothing in Vision 2030 about political reforms". The details of economic support have been subject to thorough discussion among Egyptian, Saudi, UAE, Israeli and USA officials.
To mark the visit of the Crown Prince, the cultural attache office of the Saudi Embassy in London issued the 82nd edition of its "Culture" magazine, focusing on the significance of the visit to promote the strategic partnership in the context of the two countries' historical relationship. "Yemen needs to be protected from the Houthis", said the activist, who is originally from Taiz.