US-led coalition air strikes have killed dozens of civilians in the Syrian city of Raqqa over the past 24 hours, activists and state media say.
The Syrian Observatory for Human Rights reported that 42 had died in attacks on areas held by so-called Islamic State.
Anti-IS group Raqqa is Being Slaughtered Silently said 32 were killed in one district alone.
The coalition said it adhered to strict targeting processes and procedures aimed to minimise risks to civilians.
Its aircraft are supporting a ground assault on Raqqa by the Syrian Democratic Forces (SDF) alliance, which is believed to have captured more than than half of the de facto capital of the IS "caliphate" since early June.