A UN official will meet German Chancellor Angela Merkel for refugee talks as the European continent sees more migrants and foreigners; Indonesia will elect a president, parliamentary members and regional legislators in a single day; Britain's Queen Elizabeth will celebrate her 93rd birthday; Runners in the 2019 Boston Marathon will face a wet run.

These are the international events under the spotlight for the week starting April 15.

UN refugee chief to turn to Germany

The United Nations High Commissioner for Refugees Filippo Grandi will be in Berlin for talks with German Chancellor Angela Merkel from Monday.

The UN refugee chief said he has never seen "such toxicity, such poison" in politics, the media, social media and everyday conversation focused on refugees, migrants and foreigners.

Grandi said the March 15 attack on a mosque in Christchurch, New Zealand, that killed 50 Muslim worshipers was the result "of that toxic language of politics".

Germany says it has asked the European Commission to find a safe port for a German humanitarian group's boat carrying 64 rescued migrants earlier in April. Berlin says it is willing to take some of them in but expects European partners to do so as well.

Malta and Italy have refused to open their ports to humanitarian rescue ships, saying their activities encourage smugglers.

Merkel on March 29 presented a peace prize to Jordan's King Abdullah II and called for a European sense of perspective in its handling of refugees.

Germany took in more than 1 million refugees at the height of the crisis in 2015-2016. "We Europeans would do well to keep such dimensions in front of our eyes," Merkel said.