Ukrainian presidential press secretary Svyatoslav Tsegolko reported this on his Twitter page.
"The president is holding talks with German Chancellor Angela Merkel," Tsegolko wrote.
On April 10, Poroshenko is on a visit to Germany at Merkel's invitation.
The head of state has already held talks with German Foreign Minister Heiko Maas.
Poroshenko is also due to hold talks with President Frank-Walter Steinmeier.
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