The phrase "authorities assisted" is correct and usable in written English.
It can be used when describing a situation where officials or governing bodies provided help or support in a particular context.
Example: "In the aftermath of the disaster, authorities assisted the affected families by providing shelter and resources."
Alternatives: "officials aided" or "government bodies supported".
They became stranded in the cave complex by a flash flood caused by heavy rainfall, sparking desperate efforts by Thai authorities, assisted by international specialists, to locate them.
Local government authorities assisted the recruitment of participants who were recruited at street level after the researchers had explained the aim and procedures of the study, principles of voluntary participation and selection criteria.
KAZAURE, Nigeria, 24 November 2006 – Enrolment of girls in early childhood development (ECD) classes is booming in areas of northern Nigeria, where local government authorities, assisted by UNICEF, are using multiple strategies to get more girls into pre-school.
Pre-school classes boost girls' enrolment in northern Nigeria KAZAURE, Nigeria, 24 November 2006 – Enrolment of girls in early childhood development (ECD) classes is booming in areas of northern Nigeria, where local government authorities, assisted by UNICEF, are using multiple strategies to get more girls into pre-school.
The Mexican civil-aviation authority, assisted by the Federal Aviation Administration and the National Transportation Safety Board, were investigating the crash.
The lawsuit argued that the P.L.O. and the Palestinian Authority assisted in the planning and carrying out of the attack.
The authority, assisted by the police, armed forces and coastguard, are offering on site advice and help to residents, help in moving belongings and temporary hotel accommodation.
The King was the ultimate authority, assisted by a cabinet of ministers (Pradhana) headed by the prime minister (Mahapradhana).
The city's housing authority assisted in getting people out of the complexes, revising provisions so residents could be evicted for "minor lease infractions," Newman wrote.
It now works with the transit authority, assisting with anti-harassment campaigns and a recent rider survey.
Collaboration with public health authorities assists in source identification and prevention of further transmission.
