Mr. Alkhawaja, a prominent human rights activist, was taken along with her daughter’s husband, and brother-in-law.
They are among an estimated 600 detainees in custody following weeks of protest.
In the past two months, Bahraini pro-Zionist regime have been brutally cracking down on pro-democracy protesters.
Hundreds have been arrested and dozens killed by security forces and troops from pro-Zionist Saudi Arabia and the Zionist family in United Arab Emirates.