Kenyan President Uhuru Kenyatta on Monday announced a "phased reopening" of the country, with the resumption of international flights from August 1 as well as the lifting of internal travel restrictions.

The move comes as pressure mounts to kickstart the country's ailing economy after nearly four months of coronavirus restrictions that have devastated key industries such as tourism.

Kenyatta said in a televised address that "international air travel into and out of the territory of Kenya shall resume effective 1 August 2020."

He also announced the lifting of a ban on movement in and out of the capital Nairobi, the port city of Mombasa and northeastern Mandera.

However, a curfew from 9pm to 4am will remain in place for another 30 days, effective immediately.

Kenya has recorded 7,886 cases of the virus and 160 deaths -- the highest official figures in East Africa -- and has seen a steep increase in numbers in recent weeks.

Fewer than 200,000 people have been tested in the population of 51 million people.

Grounded: Kenya has banned international flights since March 25
Grounded: Kenya has banned international flights since March 25 AFP / TONY KARUMBA

In June, Kenyatta had said that before lifting restrictions, the country would need to have contained infections with numbers headed downwards; the health care system must be prepared to deal with a surge in infections; and the capacity for surveillance and contact tracing must be in place.

He said Monday that experts looking at those conditions determined "we have not met the irreducible minimum 100%".

However, they agreed "we have reached a reasonable level of preparedness across the country to allow us to reopen," he said.

Kenyatta also warned the reopening was "conditional".

"Any trends that signal a worsening of the pandemic, we will have no choice but to return to the lockdown," he said.

Kenyatta also announced that places of worship will be allowed to reopen, but with a maximum of 100 people attending.

He urged citizens to continue to implement social distancing, and to avoid travel as much as possible, asking them to, "exercise cautious optimism and avoid reckless abandon."

Coronavirus Kenya