British Prime Minister Andy Burnham on Wednesday said there were "strong indications" Iran was involved in suspicious activity at a UK airbase that triggered a major security incident this weekend. Mr. Key points and original sources are listed below.

• British Prime Minister Andy Burnham on Wednesday said there were "strong indications" Iran was involved in suspicious activity at a UK airbase that triggered a major security incident this weekend. "There are strong indications that Iran played a part in what...S1

• Mr. Burnham's comments are the first official confirmation from U.K. authorities that Iran may have had a hand in the incident, which saw three white vans appearing to head towards RAF Fairford in the early hours of Sunday.S2

• The UK Prime Minister Andy Burnham has "strong indications" that Iran played a part in the incident that saw five men arrested near a U.S.-run military air base in England late at night.S3S4