Officials have also been assigned to check the functioning of about 80 security cameras on the hospital’s premises.

Chutima Pulllarb, deputy director of Children’s Hospital, said Phramongkutklao was not far from her hospital, which had prepared security measures and increased safety precautions follow the Monday bombing.

More lights will be installed inside the compound and security cameras checked, while staff will hospital rules concerning garbage cans and tree planters.

Ramathibodi Hospital director Dr Surasak Leelaudomlipi said the facility had prepared security measures to be implemented 24 hours a day.

Hospital staff had been ordered to wear badges and would be subject to routine checks, he said.

The hospital has 650 security cameras, with staff considering installing more, particularly in corner areas.

Dr Manas Photarom, director of Rajavithi Hospital, said the hospital had strengthened safety measures and instructed officials to help monitor for unusual items and behaviour at the instruction of the Public Health Ministry.

There are about 400 security cameras installed at the hospital, Manas said, adding staff were preparing to install more particularly in atrisk areas.