US Secretary of State Marco Rubio announced Tuesday that President Donald Trump will not attend the upcoming G20 summit in South Africa. Speaking before the Senate Foreign Relations Committee, Rubio said the decision was made due to the summit’s agenda, which the administration believes does not align with US priorities.

The announcement comes amid growing tensions between the two countries. Relations have worsened since South African President Cyril Ramaphosa signed the Expropriation Act into law in January. In March, the US expelled South Africa’s ambassador, Ebrahim Rasool, Xinhua reported.

Despite the strained ties, Ramaphosa is currently visiting the US and is expected to meet with Trump to discuss trade and bilateral cooperation.