A planned strike by members of Kenya's aviation union caused flight delays and disruptions on Monday at the country's main airport.

The Jomo Kenyatta International Airport, which serves Nairobi, is a major transport hub regionally and internationally, with lots of trade and tourism passing through it.

How has the strike affected air traffic?

Kenyan flag carrier Kenya Airways issued a travel advisory to its customers, urging them to check the status of their flights before proceeding to the airport.

The airline, as well as Tanzania's Precision Air, said air traffic control operation delays were affecting departures and arrivals at Jomo Kenyatta International Airport, promising a schedule adjustment.

"Passengers are advised not to proceed to the airport without a confirmed flight status," Kenya Airways said.

The Kenya Airports Authority said a contingency plan was in place to limit disruptions. It added that it was engaging those concerned to resolve the ongoing strike.

What do we know about the workers' strike?

Members of Kenya's aviation union walked out after issuing last week a seven-day strike notice over implementation issues with a collective bargaining agreement between the union and Kenyan authorities.

Striking workers are demanding better working conditions, better pay and better benefits.

The Kenya Civil Aviation Authority tried last week to get a court order to block the planned strike.

"This is a complete ​strike action. I have not been served with ​any court ‌order halting the strike," Moss Ndiema, the union's secretary general, ​told the Reuters news agency ⁠by phone.

Edited by: Srinivas Mazumdaru