Humberside Police have made a total of 13 arrests following incidents at a mosque on Weelsby Road in Grimsby, Lincolnshire.
Two men, aged 33 and 37, remain in custody after they were arrested in connection with a fire at the mosque on Sunday night.
Another 11 individuals were arrested last Thursday following reports of youths damaging vehicles and the Mosque.
Six of those people have been released without charge, and four 16-year-old boys and a 15-year-old boy have been released on bail until the end of June.
More top news
The US president has insisted he did nothing wrong as it emerged his former attorney recorded their discussion about a possible payment.
The cause of the fire is currently being treated as unexplained.
Education Secretary Damian Hinds sent a conciliatory message to teachers suggesting that schools deserve extra funding.