MEMPHIS, Tenn. - Authorities have arrested a fifth man charged with robbing a Memphis mall jewelry store of $537,000 in Rolex watches.

The U.S. Marshals Service says Rodrick Walker was arrested Tuesday while he was hiding in an apartment in southwest Houston. Walker was being held in the Harris County Jail, awaiting extradition.

Police say five men dressed in black with hooded shirts entered Reed Jewelers at Wolfchase Galleria Mall the night of Jan. 18, while the mall was still open. Police say they used sledgehammers to break the glass display cases and take the watches.

The robbers used two exits near the store to escape.

No injuries were reported. Despite early reports, police determined there were no shots fired.

Four other men have been arrested in the theft.