Venezuelan authorities have arrested six members of the country's military and police forces over the weekend, according to relatives of the detainees and human rights activists, as President Nicolas Maduro seeks to weed out dissent.

Air Force Brigade Gen. Miguel Sisco Mora was arrested Friday afternoon in a parking lot in Guatire, some 40 km (25 miles) east of the capital Caracas, his daughter, Stephanie Sisco, said. Navy Corvette Capt. Rafael Costa was detained on Friday in nearby Guarenas, according to his wife, Waleska Perez.

"We demand that the government provide us with information about his whereabouts," Stephanie Sisco wrote on Twitter on Saturday.