At least 23 civilians were killed in airstrikes by the US-led international coalition near the Syrian city of al-Raqqa, a British war monitor reported on Thursday.The Syrian Observatory for Human Rights (SOHR) said that six children and four women were among those killed, reported Efe news.SOHR added that most of the victims were members of the same family.Many were also wounded, but the NGO was not able to specify the numbers, although it said that some of them are in serious condition.Since the start of international coalition operations in September 2014, at least 890 civilians, including 212 children, have been killed in bombings, according to the observatory count.The NGO reiterated its request to the international coalition to take caution in airstrikes in urban areas like al-Raqqa, because there is no justification for killing civilians, according to the report.