AMY PRICE  |  AUGUST 03, 2015 2:00PM

A MAN who allegedly tried to rob a Brisbane service station overnight trashed the store after finding he had been locked inside.

Police said the would-be robber was attempting to break out of the locked store on Ipswich Rd, Annerley, about 11.30 last night when police arrived.

The 20-year-old, who was wearing a balaclava, had tried to get behind the counter but could not get through the security door.

The console operator then activated an alarm, locking the front door, before seeking refuge in a secure back room.

Another man who was in the store at the time was forced to lock himself in the bathroom after the alleged offender threw a bottle at his head and continued to hurl objects around in an attempt to escape.

“When the man discovered he was locked in the store, he began to throw store merchandise at the front doors,” police said in a statement.

“Police arrived on scene a short time later and, while attempting to open the front doors of the service station, the man continued to throw items at the doors and around the service station.

“Police managed to force the doors open and the man was arrested.”

Acting Inspector Ian Park praised the employee for their quick thinking.

“It made it possible for police to apprehend the man,” he said.

A 20-year-old Inala man was charged with two counts of assault or obstruct police and one count each of entering a premises with intent to commit an indictable offence, enter a premises and commit an indictable offence, face marked or disguised with intent to commit an indictable offence and common assault.

He was due to appear in the Brisbane Magistrates Court today.

Meanwhile, police are appealing for assistance after three gunmen held up a store near Toowoomba last night.

The three men, wearing hooded jumpers and black masks, entered the store at Gowrie Junction about 7.45pm, one armed with a shotgun and another with a handgun.

The trio threatened two male employees for money and cigarettes before driving off in a white dual cab style side utility.

Police said the vehicle was seen driving slowly past the store multiple times on Gowrie Tilgonda Road at 7.44pm.

Officers believe the driver might be able to assist with investigations.

The two staff members were not injured.

Anyone with information should contact police.

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