Several unlocked cars were broken into this week in Brookline and police are advising residents to lock their car doors and make sure not to leave anything valuable in them. The simple act of locking your car door significantly reduces the chances someone will be tempted to break into it, say police.

Police said in a Tweet the incidents over the weekend took place in Aspinwall Hill near the University and Rawson roads area.

Police said four unlocked cars were broken into overnight Monday to Tuesday and thieves took change and a bag. Three were on University Road and one was on Rawson Road. Police sent out notifications to folks living in the Apsinwall Hill neighborhood to make them aware of these crimes and to encourage residents to lock their doors.

In April there were 13 reports of cars broken into across town. But so far this month there have only been these four reports. Last year, Brookline police received the most reports of car break ins in April, according to police data. In 2015 June saw 32 car break ins.

Please be aware that overnight Monday night into Tuesday morning this week, several cars in the Aspinwall Hill neighborhood (University Road/Rawson Road) were broken into and items taken.

These cars were unlocked and change and a bag were targeted.

Please make sure to lock your car doors and keep valuables out of sight.

Breaking and entering: At 7:57 a.m. a caller reported the breaking and entering of an Audi between 4 p.m. and that morning at a Rawson Road residence. The door was unlocked, change was taken from the vehicle and the car was rifled through.

Stop means stop: At 8:10 a.m. it was reported that a vehicle ran three stop signs at the intersection of Marion Street and Harvard Street and turned right on Harvard.

Breaking and entering: At 8:34 a.m., a caller on University Road told police he believed that his car had been rummaged through, but it didn not appear anything was stolen. The caller stated that the car may have been unlocked.

More change taken: At 9:09 a.m. it was reported that a car on University Road was rummaged through and change was taken.

Unwanted delivery: At 10:31 a.m. a call reported suspicious activity on Tappan Street where a neighbor left paper goods at a caller’s front door.

Gobble, gobble: At 12:42 p.m., a custodian reported aggressive turkeys at 1 Rene Playground during recess time.

Suspicious person: At 1:13 p.m., a caller reported that she was followed while heading to her home Beacon Street by a man on Friday night. She told police that she started running, and he chased her to her building where he took a picture of the outside of the building. No call was placed to police on Friday night.

Suspicious: At 1:17 p.m., a caller reported three Middle-Eastern-looking men who were going in and out of a store at 306 Harvard St. over the course of four hours. The caller described one man as wearing a mustard-colored shirt with stripes and jeans. Another was described as wearing a dark-colored top, dark jeans and had a ponytail. The last one may or may not have been with the first two, but he was described as wearing light denim bottoms, a white shirt, and has his hair in a bun.

Even more change taken: At 5:56 p.m., a caller reported that someone broke into their car on University Road and took loose change.

A stray Gummy Bear: At 8:25 p.m., a party came to the front desk and spoke to police officer about an orange gummy bear left on a rear bumper behind a Beacon Street business. The caller was advised that it was not a police matter.

Breaking and entering: Someone reported a woman who had attempted to break into a side screen door of a home. The woman was described as wearing blue jeans and a beige long-sleeve sweater with light brown hair and in her early 30s.

Looking for buried treasure: A caller reported a man at Robinson Playground who was using a metal detector and digging up the park. The man was described as white, 5-foot-9 and wearing a grey sweatshirt and grey cargo pants.

Stop calling: Someone reported that an unknown number had been calling their phone for 30 minutes and that the call could not be answered. The caller wanted to speak with an officer.

Breaking and entering: A caller reported that someone broke into the transfer station and smashed property and stole items.

Fight: Someone reported two men in a fight on Beacon Street. One man was described as wearing a black jacket, and the other was wearing a white and black sweater. The caller said that one of the men was holding the other down.

Disturbance: A caller reported that 12 to 13 people were yelling at each other on Beacon Street.

An egging: Someone on University Road reported that their car had been egged during the morning while it was parked in the driveway.

Overstaying their welcome: A caller from North Carolina reported that their friend in Brookline had messaged them on Facebook saying that their house guest was refusing to leave. The guest was described as 6-foot-3 with glasses and a possible British accent.

Fight: A caller reported two men fighting at the Brookline Village train stop. The caller said one of the men had a hammer.

Intoxication: Someone reported that there was a man in the Beacon Street area screaming and yelling and singing.

Graffiti: A caller reported that three people used chalk to draw a swastika on a Clinton Road sidewalk.

Suspicious activity: Someone reported that a man was videotaping behind Devotion School right before school let out. The caller said that when she spotted the man he stopped recording and walked down Webster Street, so the caller followed him but lost him as he headed toward Coolidge Corner. The man was described as white, short, thin and bald, and wearing a grey T-shirt and dark jeans.

Suspicious activity: A caller reported that on Tuesday a man approached her 3-year-old daughter in the park near St. Paul Street and touched her face. The caller said that her friend had a similar occurrence happen to her. The man was described as 5-foot-10 with dark hair and was either Middle Eastern or Hispanic.

Unwanted man: A caller reported a man playing basketball in the yard of a Payson Road home, and said that the only person home was an 11-year-old boy whose mom was on her way home from a doctor’s appointment. The man was described as black.