<p>Cal Fire crews spent New Year's Day night battling a growing fire in a remote area east of Otay Mountain.</p><p>It measured roughly 20 acres shortly after 8:20 p.m., Cal Fire said in a post on X, formerly Twitter.</p><p>It was initially reported to authorities around 6:25 p.m., Capt. Robert Johnson said. He said it was moving at a moderate speed and there was no containment late Wednesday, but no structures were threatened by the fire.</p>