<span style="color: #222222;">Britain's Foreign Office said today it was extremely concerned by reports that a Hong Kong Consulate employee had been detained by Chinese authorities on his way back to the Hong Kong.<br />'' <br />'' Foreign and Commonwealth Office Spokesperson said in a statement that they are extremely concerned by reports that a member of our team has been detained who was returning to Hong Kong from Shenzhen. They said, they are seeking further information from authorities in Guangdong Province and Hong Kong. </span><br />'' <span style="color: #222222;"><br />''<br />''The financial hub is facing its worst political crisis in decades. Pro-democracy protesters have staged rallies that have often descended into violent clashes between police and protesters. Beijing has taken hard-line stand against the protests, which it sees as a direct challenge to its rule.</span><br />