Computer tablets have been thrown into prison grounds in the latest example of contraband smuggling.
Mobile phones and drugs were already a problem. Now an inspection report reveals tablet computers are also an issue.
The report from HM Inspectorate of Prisons added that on several occasions intruders had breached the perimeter fence "to get closer to residential units".
Steps had been taken to counteract this evolving threat, the watchdog noted, including the cladding of fencing.
Figures published by the Ministry of Justice last month revealed that 13,000 mobile phones and 7,000 sim cards were recovered in jails last year. There have been warnings that criminal gangs are using handsets to organise the trafficking of drugs into prisons, to "terrorise" victims and to post on social media.
HMIP concluded that Haverigg had a troubled past but was making improvements.
Mr Clarke said there was still much to do at the establishment.