Avon and Somerset Police are searching three properties in Bristol and plan to bring in more resources to help with the search for missing teenager Becky Watts.
Prince William has visited the Forbidden City in Beijing as he continues his tour of China.
The Duke of Cambridge is the first senior member of the royal family to visit the country since the Queen in 1986.
During his visit he will be taken on a tour of the landmark, which has been the imperial palace complex of Chinese emperors for centuries.
The head of the US Army has said he is "very concerned" about the impact of cuts on Britain's military capability.
In an interview with the Telegraph, Chief of Staff General Raymond Odierno said the falling proportion of UK GDP committed to the military could mean British units eventually have to operate within US ranks rather than alongside them.
"We have to adjust our programme to make sure we are all able to see that we can still work together," he warned.
"As we look at threats around the world, these are global issues and we need to have multinational solutions.
"They are concerning to everyone. We all need to be able to invest and work together to solve these problems."
The warning came after former defence secretary Dr Liam Fox said he and fellow Tory MPs would find it "hard to swallow" should Britain not commit to Nato's 2% target on defence spending beyond 2016 while maintaining a 0.7% spend on aid.
Police investigating the disappearance of teenager Rebecca Watts were seen leaving an address near her home on Sunday, carrying what appeared to be evidence bags.
Forensics teams were seen at the house in Wilton Close, Bristol - from which a large barrel-shaped object, wrapped in black plastic, was also removed.
Police said no significant items had so far been discovered and that a laptop found in a woodland on Saturday is not related to the investigation.
Dog and helicopter teams are to rejoin the intensifying search efforts on Monday.
Police are appealing to the public to help find a heavily-pregnant teenager who has not been seen since leaving hospital.
19-year-old Alisha Khan, who is 36 weeks pregnant, was taken to Royal Manchester Children's Hospital after she fainted while out shopping.
She then left the hospital without treatment and was last seen at around 12.20am on Saturday.
Khan, from Oldham, is described as mixed race with a slim build and brown eyes. She is known to frequent the Dukinfield, Wythenshawe and Oldham areas.
Detective Sergeant Simon Halliwell of Greater Manchester Police said: "She left the hospital without treatment or checks and we are concerned she may have an ongoing condition that could harm her or the baby."
Anyone with information is urged to contact police on 101.
Mohammed Emwazi, the British graduate named as Islamic State murderer "Jihadi John", was a model worker who was "very good with people", his former employer has said.
The manager of an unnamed IT firm that hired Emwazi as a salesman while he lived in the Gulf told the Guardian he was "the best employee we ever had".
"How could someone as calm and quiet as him become like the man who we saw on the news? It's just not logical that he could be this guy," he said.
"I have no answers for this. He wasn't sociable. He was always earnest. He didn't smile. But he wasn't bad."
He said Emwazi had left the company when he returned to England in 2010, adding: "Maybe he fell into the wrong hands when he went back."
The coalition government has admitted there's a "difference of opinion" over how to deal with extremist speakers at universities and colleges.
Conservative Party chairman Grant Shapps told Sky News' Murnaghan, "Vince Cable doesn't want to do what the Conservatives want to do which is to make sure that on campus we do not have radical preachers saying things which incite violence, which ultimately can lead to the radicalisation of young people."
It comes as email exchanges between the man believed to be "Jihadi John" were released.
ITV News Political Correspondent Libby Wiener reports:
Police looking for missing teenager Becky Watts in Bristol are now searching three properties as officers from neighbouring forces are brought in to help.
Two people are still being questioned over the 16-year-old's disappearance 10 days ago.