Hong Kong protests: Police fire tear gas at demonstrators
Riot police have fired tear gas and rubber bullets at protesters in Hong Kong following a large pro-democracy rally in the city.
gases
![Hong Kong police fire rubber bullets, tear gas as protests descend into chaos]()
U.S. fires tear gas into Mexico to repel migrants
Mexico will deport up to 500 migrants who attempted to storm the US border, according to its interior ministry.
The group were rounded up after trying to cross the border "violently" and "illegally" on Sunday, the ministry said in a statement.![U.S. fires tear gas into Mexico to repel migrants. Mexico to deport group which stormed US border]()
Climate change: Warming gas concentrations at new record high
Concentrations of key gases in the atmosphere that are driving up global temperatures reached a new high in 2017.
![Climate change: Warming gas concentrations at new record high. Concentrations of key gases in the atmosphere that are driving up global temperatures]()
