The UK Foreign Office has expressed concern over reports that a Hong Kong consulate employee has been detained at the Chinese border.
Media reports say Simon Cheng, who is thought to be from Hong Kong, is believed to have gone missing on 8 August while on a business trip.
The Foreign Office said it was "seeking further information from authorities in Guangdong Province and Hong Kong".
The British embassy in Beijing is providing support to his family.
A Foreign Office spokesman said: "We are concerned by reports that a member of our team has been detained while returning to Hong Kong from Shenzhen."
Shenzhen, in south-east China, links Hong Kong to the Chinese mainland.
Local outlet HKFP reports that Mr Cheng is a trade and investment officer at the Scottish Development International section of the consulate.
It says he travelled to a business event in Shenzhen on 8 August via the Lo Wu immigration control point.
His girlfriend told news site HK01 he had planned to travel home by train the same day, but did not return.
The Scottish government said it was concerned for Mr Cheng's welfare and was liaising with the Foreign Office.
Travellers have described heightened security measures at the border between Hong Kong and China, as Beijing looks to curb anti-government protests in Hong Kong which it has called "close to terrorism".
Recent travellers have reported that everyone passing through the border from Hong Kong into mainland China were subject to police checks on the mainland side, with officers taking people's phones and scrutinising their photos and videos.
'My phone was checked at border for protest photos'
A woman, who did not wish to be identified, has told the BBC she was forced to delete photos from her phone at the border during a recent trip.
Police holding random checks asked the woman, who travels from Hong Kong to mainland China for work, to hand over the phone, which included some WhatsApp conversations with friends about the protests.
"I was so afraid of them checking my phone, so I gave them my old phone," she said.
"I thought I had deleted all protest photos, but they also checked for protest-related posters and news.
"After seeing I had these on my phone, the staff immediately called other uniformed staff, took me to another room, and asked about my background, my job, whether I had joined the protests. Another staff member carefully checked my phone's photo albums to see how many protest-related photos I had."
"I have deleted some protest photos on my iPhone, but I didn't realise those were moved to the 'recently deleted' folder. The officer also checked that. He found I had about 100 protest photos and asked me to delete them all," she added.
"My observation is that they check two people out of three. The situation is quite severe. None of my friends want to go to mainland China now."
https://www.bbc.com/news/world-asia-china-49403619
Media reports say Simon Cheng, who is thought to be from Hong Kong, is believed to have gone missing on 8 August while on a business trip.
The Foreign Office said it was "seeking further information from authorities in Guangdong Province and Hong Kong".
The British embassy in Beijing is providing support to his family.
A Foreign Office spokesman said: "We are concerned by reports that a member of our team has been detained while returning to Hong Kong from Shenzhen."
Shenzhen, in south-east China, links Hong Kong to the Chinese mainland.
Local outlet HKFP reports that Mr Cheng is a trade and investment officer at the Scottish Development International section of the consulate.
It says he travelled to a business event in Shenzhen on 8 August via the Lo Wu immigration control point.
His girlfriend told news site HK01 he had planned to travel home by train the same day, but did not return.
The Scottish government said it was concerned for Mr Cheng's welfare and was liaising with the Foreign Office.
Travellers have described heightened security measures at the border between Hong Kong and China, as Beijing looks to curb anti-government protests in Hong Kong which it has called "close to terrorism".
Recent travellers have reported that everyone passing through the border from Hong Kong into mainland China were subject to police checks on the mainland side, with officers taking people's phones and scrutinising their photos and videos.
'My phone was checked at border for protest photos'
A woman, who did not wish to be identified, has told the BBC she was forced to delete photos from her phone at the border during a recent trip.
Police holding random checks asked the woman, who travels from Hong Kong to mainland China for work, to hand over the phone, which included some WhatsApp conversations with friends about the protests.
"I was so afraid of them checking my phone, so I gave them my old phone," she said.
"I thought I had deleted all protest photos, but they also checked for protest-related posters and news.
"After seeing I had these on my phone, the staff immediately called other uniformed staff, took me to another room, and asked about my background, my job, whether I had joined the protests. Another staff member carefully checked my phone's photo albums to see how many protest-related photos I had."
"I have deleted some protest photos on my iPhone, but I didn't realise those were moved to the 'recently deleted' folder. The officer also checked that. He found I had about 100 protest photos and asked me to delete them all," she added.
"My observation is that they check two people out of three. The situation is quite severe. None of my friends want to go to mainland China now."
https://www.bbc.com/news/world-asia-china-49403619