US investigators relied too heavily on scientific evidence against a man accused of sending letters laced with anthrax in 2001, a review panel says.

Security forces in Yemen's capital Sanaa use tear gas and batons to disperse thousands of anti-government protesters.

Islamic morality police in Malaysia arrest more than 80 Muslims in an operation to stop them celebrating Valentine's Day.

President Mahmoud Ahmadinejad says recent opposition protests in Iranian cities are "going nowhere" and vows to punish their organisers.

The US government defends its request for the personal details of three Twitter users, as part of its inquiry into Wikileaks.

CBS correspondent Lara Logan is recovering after she was beaten and sexually attacked while reporting on Egypt's protests, the US network says.

A US customs special agent is shot dead and a second wounded "in the line of duty" in a shooting in Mexico, US officials say.

Taking zinc syrup, tablets or lozenges can lessen the severity and duration of the common cold, experts believe.