Athens, Jul 7 (IANS): Greek authorities have announced the reintroduction of restrictions on entertainment venues following a recent spike in new Covid-19 infections.

From Thursday, all restaurants, cafe-bars and clubs will be serving strictly seated customers, Nikos Hardalias, deputy minister for civil protection and crisis management, said in a televised statement, warning that violators will face heavy fines and forced closure.

The measure was imposed after the country saw large crowds fill the entertainment venues in the past few days, which has been linked with the increase in daily cases, reports Xinhua news agency.

On Tuesday, the National Public Health Organization (EODY) announced 1,797 new infections and 8 deaths over the past 24 hours, as well as 168 patients on ventilators in hospitals across Greece.

"Since June 28 we have witnessed a dramatic rise in the number of cases at an alarmingly fast pace. They have almost tripled," Hardalias said.

The latest data showed that many of the new cases concern young people who were infected in entertainment places, he added.

The more transmissible Delta variant is spreading in Greece and might have become dominant, Hardalias said, urging citizens to get vaccinated with no delay.

"Get inoculated immediately. In particular younger generations should protect their parents and other elderly relatives," he said.

Ninety-nine per cent of patients aged 60-80 who were treated in intensive care units or passed away in the past three months in Greek hospitals had not been vaccinated, he said.

To date, more than 8.8 million vaccine doses have been administered in Greece and over four million people have been fully vaccinated.

As the number of daily infections started to drop since spring, Greece has been gradually easing restrictions which have been imposed since last year to control the spread of the pandemic.