"My family and I are horrified seeing pictures from Ukraine and heartbroken for the innocent people who have been so terribly affected. We stand for peace," Federer said on Twitter.
The Panjshir Valley is famed for being a site of resistance by Afghans against Soviet forces in the 1980s and as a base for rebels opposed to Taliban rule during the Islamists' first stint in power in the late 1990s.
Taal volcano, which sits in a lake south of Manila, exploded with a "short-lived" burst at 7:22am (2322 GMT), the Philippine Institute of Volcanology and Seismology said in a statement.
South Korean officials put the nation on alert about potential damages from flooding, landslides and tidal waves unleashed by Hinnamnor, which came just weeks after heavy rains in the region around the capital Seoul caused flooding that killed at least 14 people.
A new visa scheme offering millions of Hong Kongers a pathway to British citizenship went live on Sunday as the city's former colonial master opens its doors to those wanting to escape China's crackdown on dissent.
Civil defence officials have warned that upwards of 317,000 people could be vulnerable to toxic gas emissions from the volcano under the current eruption's worst-case scenario.
The fire department said 95 firefighters, two aircraft, four ground teams and 35 vehicles were battling the flames in Evia, while 74 firefighters, three ground teams, 22 vehicles and one helicopter were tackling the fire in the Messinia area of the Peloponnese.
The sudden eruption of violence between the military and the well-armed Rapid Support Forces (RSF) paramilitary group on April 15 has triggered a humanitarian crisis and killed 420 people.
Locals in Lucindale, a community of around 550 people some 260 kilometres (162 miles) south east of Adelaide, were warned by the Country Fire Service (CFS) after the fire cut off roads they could use to evacuate.