Myanmar’s security forces have killed at least 510 civilians in nearly two months of efforts to stop protests against a Feb 1 coup, an advocacy group said on Monday, as thousands of people took to the streets again despite the growing toll.

Another 14 civilians were killed on Monday, the Assistance Association for Political Prisoners (AAPP) said, as it also updated figures for previous days. The total killed on Saturday, the bloodiest day so far, had risen to 141, figures showed.