“Third wave alert” is the headline for the Metro, which says there are fears the final stage of easing lockdown in England due on 21 June may be delayed. The paper says scientists are warning a rise in cases of the variant first identified in India could become a surge and overwhelm hospitals. A less gloomy warning features on the other half of the front page, with the headline “heat wave alert”, alongside a picture of two children enjoying a lido near Bristol on Monday – the hottest day of the year so far.