Vietnamese demonstrators held up signs and chanted words protesting against what they consider to be a Chinese invasion of their territory in the South China Sea. Tibetans were also present claiming the Chinese are violating their human and religious rights.
Counter-protesters were also there to show their support for the premier and stress the positive outcomes that could come from improved relations between the two countries.
During his visit, Li and Cameron signed $23.7 billion (14 billion pounds) worth of trade deals.
"The U.K. is the most popular destination in Europe for Chinese investment with more Chinese investment into the United Kingdom in the last 18 months than the whole of the last 30 years combined," Cameron said Tuesday afternoon.
Cameron tweeted a picture of himself sitting with his wife, Samantha, Li and his wife, Professor Cheng-Hong, in the Downing Street garden.
Sam and I were delighted to welcome Premier Li and his wife, Professor Cheng-Hong, to the No10 garden. pic.twitter.com/VSJL4ohsJ5— David Cameron (@David_Cameron) June 17, 2014
Li will also meet with the queen at Windsor Castle.