A reporter with the BBC Burmese service has been detained in Myanmar as clashes continue between security forces and protesters.
Aung Thura was taken away by men in plain clothes while reporting outside a court in the capital, Nay Pyi Taw.
The BBC said in a statement that it was extremely concerned and called on the authorities to help locate him.
At least eight people are reported to have died in the most recent protests, which took place in several cities.
Aung Thura was taken away with another reporter, Than Htike Aung, who works for the local news organisation Mizzima. Mizzima's operating licence was revoked by the military government earlier this month.
The men who detained the journalists arrived in an unmarked van at around midday local time (05:30 GMT) on Friday and demanded to see them. The BBC has been unable to contact Aung Thura since.
"The BBC takes the safety of all its staff in Myanmar very seriously and we are doing everything we can to find Aung Thura," the corporation said in a statement.
"We call on the authorities to help locate him and confirm that he is safe. Aung Thura is an accredited BBC journalist with many years of reporting experience covering events in Nay Pyi Taw."
Forty journalists have been arrested since a military coup on 1 February, which saw the detention of elected civilian leaders including Aung San Suu Kyi. Sixteen are still in custody, and the military has revoked the licences of five media companies.