"Nine people erected a tripod and have locked themselves together on the runway… All have now been removed from the runway and taken into police custody," London Metropolitan Police said in a statement.
The police service added that the protesters were arrested on suspicion of aggravated trespass and breaching London City Airport bylaws.
Black Live Matter UK said in a statement that the action was taken to highlight Britain’s environmental impact on the lives of black people locally and globally.
The group says the airport caters to people working in financial services making it a facility to help the wealthy.
Black Lives Matter is an international activist movement that raises awareness of violence and systemic racism toward black people.