After the Battle of the Trench in 627, the Jews of Banu Qurayza were accused of conspiring with the Meccans. According to Watt, though Qurayza does not appear to have committed any overt hostile act and been overtly correct in their behavior, they had most likely been involved in negotiations with the enemy." Marco Scholler believes the Banu Qurayza were "openly, probably actively," supporting Meccans and their allies. Nasr writes that it was discovered that Qurayzah had been complicit with the enemy during the Battle.