The German Chancellor Angela Merkel was shaking at a public event for the second time in less than two weeks, rekindling concerns over her health.

The brief incident happened as she stood alongside Germany's President Frank-Walter Steinmeier at a ceremony in Berlin.

The two were attending a farewell ceremony for Justice Minister Katarina Barley, who is taking up a post in the European Parliament.

Mrs Merkel (64) was handed a glass of water but rejected it.

German Chancellor Angela Merkel rejects a glass of water offered to her at Bellevue Castle in Berlin | Image: Kay Nietfeld/DPA/PA Images

She appeared fine when she arrived in parliament half an hour later.

A spokesman for the German leader dismissed any concerns over her health.

Addressing questions on whether she would take part in the swearing-in of the new minister and this weekend's G20 meeting in Japan, he said: "Everything is taking place as planned."

He added: "The chancellor is fine."

Angela Merkel was shaking at a public event for the second time in less than two weeks, rekindling concerns over her health.

The German chancellor was stood alongside the country's president at a ceremony in Berlin at the time. Read the full story here: https://t.co/UrHaoPWlPP pic.twitter.com/lUU9TAfIFy

— Sky News (@SkyNews) June 27, 2019

Mrs Merkel first sparked worries after she was spotted shaking vigorously during a meeting with Ukrainian President Volodymyr Zelensky on June 18th.

She dismissed the concerns at the time, saying she was just dehydrated, and felt better after drinking some water.

Main image: German Chancellor Angela Merkel (left) takes part in a presentation to outgoing Justice Minister Katarina Barley with President Frank-Walter Steinmeier (right) at Bellevue Castle in Berlin | Image: Kay Nietfeld/AP/Press Association Images