Three National Police Service constables and a Kenya Defence Forces (KDF) corporal have been arrested over the recent robbery of Sh72 million that was being loaded into an ATM by G4S officials.

The incident occurred earlier this month at a Standard chartered bank ATM in Nairobi West, when Administration Police officers escorting the cash brandished guns and took off with the money

Police investigations show it was a well-planned robbery that involved officials the G4S officers, who have since been arrested and charged alongside other APs involved and who were found with part of the loot.

“We have arrested four more suspects linked to this robbery, and all are security officers,” George Kinoti, the Director of Criminal Investigations (DCI) said.

Those arrested, he said, are a KDF officer from Kahawa Barracks and three Administration Police officers–including a couple.

They are Simon Gichuru Karuku of Thika, Caroline Njeri Waithira of Thogoto Sub County and Florence Wanjiru of Githurai Police Post, police said. the first two are a couple, while the third is Simon’s sister.

Kinoti said investigations have shown that the couple had sought to apply for an anticipatory bail through an advocate.

And following interrogations, Kinoti said, the suspects have identified the fifth person who is being sought after escaping with an unknown amount of money. He is a boyfriend to one of the officers.

Soon after the robbery, three Administration Police officers were arrested in Kisii and Homa Bay and Machakos and some of the money recovered. They have since been charges.