Met Éireann has issued a High Temperature Advisory with temperatures expected to be in the high 20s during the day and very humid at night for the next week.

Health Service Executive CEO Paul Reid has said the country is in for a "bumpy journey" for the next few weeks due to the Delta variant of Covid-19.

The death toll from devastating floods has risen to 156 in Germany, police said, bringing the total to at least 183 fatalities from the disaster in western Europe.

Australia's two largest states have reported slight declines in new Covid-19 infections, prompting authorities to say it could be days before tough lockdown measures showed progress in containing the spread of the Delta variant.

British PM Boris Johnson and finance minister Rishi Sunak have been contacted by NHS Test and Trace as contacts of someone who has tested positive for Covid-19 but will not be self-isolating, Downing Street said.

Northern Ireland's leading supermarkets have issued a call for urgent action to avoid trade disruption under the terms of the Brexit protocol.

It's not just temperatures which have shot up this week. The Central Statistics Office (CSO) confirmed that the economy, or at least parts of it, is going through a definite heatwave of spectacular growth.

Three people were shot outside a baseball stadium crowded with thousands of spectators in the US capital, causing the game to be abruptly halted as fans were ushered out.

With many offices still shut due to the pandemic, virtual internships are becoming the new norm for college students.

There are disagreements in the US over how to tackle the threats facing our planet but as temperatures soar this summer, climate change is the hot topic of conversation for many Americans.

Tributes have been paid following the death of a young Monaghan GAA player in a road crash last night.

An Irish Air Corps helicopter is assisting Dublin Fire Brigade crews on Howth head as they battle ongoing gorse fires.

Residents in South Africa cleaned up shopping centres and stores looted during a week of shocking violence that rocked the country and left more than 200 dead.

The British government argues that the widespread vaccination programme has changed the calculus, breaking the link between infection, hospitalisations and deaths.

A California judge has sentenced a man nicknamed the "Hollywood Ripper" to death for the home-invasion murders of two women in the early 2000s, one of whom was preparing to go on a date with actor Ashton Kutcher.

Sydney has ordered a shutdown of building sites, banned non-essential retail and threatened fines for employers who make staff come into the office as new Covid-19 cases keep rising.

Taoiseach Micheál Martin has said the rising number of cases of Covid-19 is very serious, adding that he has been concerned about the Delta variant for some time.

Britain's health minister Sajid Javid has said he had tested positive for Covid-19, but that his symptoms were mild and he has had two doses of vaccine against the disease.

US President Joe Biden has said that the Justice Department will appeal a "deeply disappointing" ruling by a federal judge in Texas on a programme that protects from deportation certain immigrants brought to the United States as children.

Greece has imposed a five-hour night curfew and other restrictions on the popular travel island of Mykonos because of a "worrying" spike in local Covid-19 infections, officials said.