(CNN) -- Relatives were Friday trying to reach four British children stranded in Venezuela after the adults they were traveling with were arrested for allegedly carrying huge quantities of cocaine, officials said.
Paul and Laura Makin were detained by police at Margarita Airport who said a search of their luggage revealed 24 kilograms (52 pounds) of cocaine. They had been accompanied by four children: Two-year-old twins Libby and Lucy and Megan, 7, and Jack, 8.
The British Foreign Office said relatives of the children, who have been placed in Venezuelan foster care, had flown out to the South American country and efforts were being made to reunite them.
Police in the UK have confirmed a warrant for arrest was issued for 31-year-old Paul Makin after he failed to make a court appearance on violence and weapons charges.
"Embassy consular staff have traveled to Margarita Island and are keeping in close touch with the authorities and those detained and are monitoring the welfare of the children," a Foreign Office spokeswoman said.