Are these sentences right?

[cubezero3]

#1 When reports that a wild puma had been spotted came into London, ...

#2 When reports, that a wild puma had been spotted, came into London, ...

The original one is When reports came into London that a wild puma had been spotted, .... I am just curious as to whether I can change the sequence of the words without changing the meaning or being ungrammartical.

#1 feels strange and is probably quite confusing.

#2 feels odd too. I know it will be alright if in which is used instead of that.

Many thanks

Richard

[5jj]

#1 When reports that a wild puma had been spotted came into London, ...

#2 When reports, that a wild puma had been spotted, came into London, ...


#1 is correct and reasonably clear.

#2 is is highly unlikely.