LONDON: Saudi Arabian women´s rights activist Loujain al-Hathloul has been detained by authorities at an airport in Dammam, rights group Amnesty International said in a statement.
This is the second time authorities have detained Hathloul, who was arrested on Sunday, Amnesty said.
In 2014, she was held for breaking an absolute ban in the Islamic kingdom on women driving -- the only country in the world where women are not allowed to do so.
"It appears she is being targeted once again because of her peaceful work as a human rights defender speaking out for women´s rights, which are consistently trammelled in the kingdom," said Amnesty´s Samah Hadid.
"If so she must be immediately and unconditionally released," said Hadid, who described Monday´s news as "absurd and unjustifiable".
In November 2014, Hathloul tried to drive into Saudi Arabia from the neighbouring United Arab Emirates in defiance of the ban, and was held for more than two months.
Hathloul tried to stand for public office in November 2015, in the kingdom´s first election in which women were allowed to vote and stand for office.
The activist said she was disqualified by the authorities.
Amnesty has said Hathloul was later recognised as a candidate, but her name was never added to the ballot.
Trump clinches 84% of the votes out of the 92%
New video shows that Donald Trump may not even get job at mall
British tourist chose to roll down the window for taking selfie
Mitchell is being held at Becker County Jail on first-degree burglary suspicion
Malaysian PM conveys condolences on "heart-wrenching" tragedy
Bad news for the former president as prosecutors can question him from prior cases