Apparently the Iranians tried to grab an Aussie boarding team some time before they grabbed the Brits. The Aussies appear to have been a little more aggressive in thwarting the Iranians, though the circumstances appear to be a bit different.
http://news.bbc.co.uk/2/hi/middle_east/6228342.stm
http://news.bbc.co.uk/2/hi/middle_east/6228342.stm