Tourists were evacuated by air from Kenya’s Maasai Mara national reserve Wednesday after more than a dozen hotels, lodges and camps were flooded as heavy rains battered the country. Tourist accommodation facilities were submerged after a river within the Maasai Mara broke its banks. The reserve, in southwestern Kenya, is a popular tourist destination because it features the annual wildebeest migration from the Serengeti in Tanzania.

The Kenya Red Cross said it rescued more than 90 people. The Narok County government said it deployed two helicopters to carry out evacuations in the expansive conservation area.

More than 170 people have died across Kenya since mid-March when the rainy season started, causing flooding, landslides and destroying infrastructure. The Metrology Department has warned that more rain is expected this week.

On Wednesday, three major roads in the capital, Nairobi were temporarily closed due to flooding. The Kenya Red Cross rescued 11 people from a residential area – Kitengela – in the outskirts of Nairobi after their homes flooded overnight.

The government has urged people living in flood-prone areas to evacuate or be moved forcefully as water level in two major hydroelectric dams rise to a “historic high.”