New York Mayor Bill de Blasio tweeted after his news conference:
Once again, we have been shown what our first responders are capable of under extraordinarily difficult circumstances. #eastharlemexplosion
More top news
Donald Trump has said American culture is being "ripped apart" by efforts to remove Confederate memorials from parts of the country.
It's a bright start for many this morning, with a mixture of sunshine and showers across the UK.
Teenage schoolchildren who use e-cigarettes dramatically increase their chances of graduating to tobacco, research has shown.