Merseyside Police have arrested an eighth man following dawn raids in Rock Ferry and West Derby.
He's being questioned on suspicion of possession with intent to supply controlled drugs.
Four men arrested earlier have been released on bail. Two have been released without charge and another remains in custody.
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Frost and fog overnight into Monday. Turning milder this week
Cold start but turning milder this week.
Churches in parts of Manchester are urging people to bin their blades in the run up to Christmas.