three ships high in orbit triangle formation

unsure of the shape because they were to high in orbit, just wondering if there where any other reports , there were three ships flying in a traingle formation from where we are located we were looking towards the north at the big dipper when above the three ships appeared and moved in a south west formation then the lead ship took off then the other two went as well. I have seen many planes and satellites moving across the sky but this is the first time i have ever seen this encounter just curious if there was any more sighitngs . I live in sydney nova scotia and it was a really clear night last night