Iran poses a significant and wide-ranging threat to Britain and, while not in the same league as Russia or China, it is one that is rising and for which the UK government is not fully prepared, British lawmakers said in a report released on Thursday.

The threat posed by Iran to dissidents living in the UK has significantly increased in recent years, according to an influential panel of lawmakers who urged the British government to bolster cyber resilience and espionage capacity.

The UK faces a "rising" and unpredictable threat from Iran and the government must do more to counter it, Parliament's intelligence and security committee has warned. The call comes as it publishes the results of a major inquiry which examined Iranian state assassinations and kidnap,